Difference between revisions of "Development of retractable foreskin"

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[[Image:Side by side retraction.png|right|thumb|A human penis before and after retraction of the foreskin.]]
+
[[Image:Side by side retraction.png|right|thumb|A human [[penis]] before and after retraction of the [[foreskin]].]]
  
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In the majority of adult men, the [[foreskin]] normally retracts to reveal the head of the penis. In newborns, it is common for the foreskin to be fused to the head of the penis by the [[synechia]], thus rendering it non-retractable. The preputial cavity is sealed by the [[synechia]].<ref name="fleiss-hodges-vanhowe1998">{{REFjournal
+
Infant boys are born with a non-retractable [[foreskin]].<ref name="agarwal2005">{{REFjournal
−
  |last=Taylor
+
  |last=Agarwal
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  |first=J.R.
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  |first=
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  |author-link=John R. Taylor
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|init=A
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  |last2=Lockwood
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  |author-link=
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  |first2=A.P.
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  |last2=Mohta
 +
  |first2=
 +
|init2=A
 
  |author2-link=
 
  |author2-link=
−
  |last3=Taylor
+
  |last3=Anand
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  |first3=A.J.
+
  |first3=
−
  |title=The prepuce: specialized mucosa of the penis and its loss to circumcision
+
  |init3=RK
−
  |journal=Brit J Urol
+
|author3-link=
−
  |date=1996
+
|etal=no
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  |volume=77
+
|title=Preputial retraction in children
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  |issue=
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|trans-title=
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  |pages=291-5
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|language=
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  |url=http://onlinelibrary.wiley.com/doi/10.1046/j.1464-410X.1996.85023.x/full
+
  |journal=J Indian Assoc Pediatr Surg
 +
|location=
 +
  |date=2005-04
 +
|season=
 +
  |volume=10
 +
  |issue=2
 +
  |article=
 +
  |pages=89-91
 +
  |url=https://journals.lww.com/jiap/fulltext/2005/10020/preputial_retraction_in_children.5.aspx
 +
|archived=
 
  |quote=
 
  |quote=
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  |pubmedID=8800902
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  |pubmedID=
 
  |pubmedCID=
 
  |pubmedCID=
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  |DOI=10.1046/j.1464-410X.1996.85023.x
+
  |DOI=10.4103/0971-9261.16468
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  |accessdate=2019-12-02
+
  |accessdate=2024-06-26
−
}}</ref> The foreskin usually separates from the glans and becomes retractable with increasing age. There is much uncertainty among health care workers about when the foreskin of a boy should become retractable.<ref>{{REFjournal
+
}}</ref> The '''development of retractable foreskin''' occurs gradually over a widely-variable number of years.
 +
 
 +
In the majority of adult men, the [[foreskin]] normally retracts to reveal the [[glans penis| head of the penis]]. In newborns, it is normal for the foreskin to be fused to the head of the penis by the [[synechia]], thus rendering it non-retractable.<ref name="agarwal2005" /> The [[preputial sac]] is sealed by the [[synechia]].<ref name="fleiss-hodges-vanhowe1998">{{TaylorJR LockwoodAP TaylorAJ 1996}}</ref> The [[foreskin]] usually separates from the glans and becomes retractable with increasing age.<ref name="agarwal2005" /> There is much uncertainty among health care workers about when the foreskin of a boy should become retractable.<ref>{{REFjournal
 
  |last=Simpson
 
  |last=Simpson
−
  |first=E.T.
+
  |init=ET
 
  |last2=Barraclough
 
  |last2=Barraclough
−
  |first2=P.
+
  |init2=P
 
  |title=The management of the paediatric foreskin
 
  |title=The management of the paediatric foreskin
 
  |journal=Aust Fam Physician
 
  |journal=Aust Fam Physician
Line 40: Line 53:
 
  |date=1998-05
 
  |date=1998-05
 
  |accessdate=2019-10-17
 
  |accessdate=2019-10-17
−
}}</ref> The mistaken belief that the foreskin was supposed to be retractable at the time of birth of the infant has led to a characterization of the genitalia of most infant males as defective at birth. This has led to many false diagnoses of [[phimosis]], followed by unnecessary [[circumcision]], when, in fact, the foreskin is developmentally normal.
+
}}</ref> The mistaken belief that the foreskin was supposed to be retractable at the time of birth of the infant has led to a characterization of the genitalia of most infant males as defective at birth. This has led to many false diagnoses of [[phimosis]], followed by unnecessary [[circumcision]], when, in fact, the [[foreskin]] is developmentally normal. There is no one correct age for the foreskin to become retractable.<ref name="agarwal2005" />
  
−
Normally, developmental non-retractability does not cause any problems. Non-retractability may be deemed pathological if it causes problems, such as difficulty urinating or performing normal sexual functions, but even then, this is rare, and, if the non-retractability itself is not caused by pathological inflammation, it cannot be called "pathological" or "true phimosis."  A foreskin that is so narrow it will retract very little or not at all, but is not the result of a pathological inflammation, is accurately termed ''preputial stenosis'' (narrow prepuce), and will respond to treatment including steroid creams, manual stretching, and changing [[masturbation]] habits.
+
Normally, developmental non-retractability does not cause any problems, in fact, it is protective of the [[glans penis]] and protects against [[meatal stenosis]].<ref name="agarwal2005" /> Non-retractability may be deemed pathological if it causes problems, such as difficulty urinating or performing normal sexual functions, but even then, this is rare, and, if the non-retractability itself is not caused by pathological inflammation, it cannot be called "pathological" or "true phimosis."  A foreskin that is so narrow it will retract very little or not at all, but is not the result of a pathological inflammation, is accurately termed ''preputial stenosis'' (narrow prepuce), and will respond to treatment including steroid creams, manual [[stretching]], and changing [[masturbation]] habits.
  
 
== History ==
 
== History ==
  
−
The first data on development of retractile foreskin were provided in 1949 by the famous British paediatrician, [[Douglas Gairdner]].<ref name="Gairdner">{{REFjournal
+
The first data on development of retractile foreskin were provided in 1949 by the famous British paediatrician, [[Douglas Gairdner]].<ref name="Gairdner">{{GairdnerDM 1949}}</ref> His data have been incorporated into many textbooks and is still being repeated in the medical literature today. [[Douglas Gairdner|Gairdner]] said that 80 percent of boys should have a retractable foreskin by the age of two years, and 90 percent of boys should have a retractable prepuce by the age of three years.<ref name="Gairdner"/>
−
|last=Gairdner
 
−
|first=D.
 
−
|author-link=Douglas Gairdner
 
−
|title=The fate of the foreskin: a study of circumcision
 
−
|journal=Br Med J
 
−
|volume=2
 
−
|issue=
 
−
|pages=1433-7
 
−
|url=https://europepmc.org/backend/ptpmcrender.fcgi?accid=PMC2051968&blobtype=pdf
 
−
|quote=
 
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|pubmedID=15408299
 
−
|pubmedCID=2051968
 
−
|DOI=10.1136/bmj.2.4642.1433
 
−
|date=1949
 
−
|accessdate=
 
−
}}</ref> His data have been incorporated into many textbooks and is still being repeated in the medical literature today. [[Douglas Gairdner|Gairdner]] said that 80 percent of boys should have a retractable foreskin by the age of two years, and 90 percent of boys should have a retractable prepuce by the age of three years.<ref name="Gairdner"/>
 
  
 
Unfortunately, [[Douglas Gairdner|Gairdner]]’s data are inaccurate,<ref name="Wright1994">{{REFjournal
 
Unfortunately, [[Douglas Gairdner|Gairdner]]’s data are inaccurate,<ref name="Wright1994">{{REFjournal
 
  |last=Wright
 
  |last=Wright
−
  |first=J.E.
+
  |init=JE
 
  |title=Further to the "Further Fate of the Foreskin"
 
  |title=Further to the "Further Fate of the Foreskin"
 
  |journal=Med J Aust
 
  |journal=Med J Aust
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}}</ref> <ref name="Hill2003">{{REFjournal
 
}}</ref> <ref name="Hill2003">{{REFjournal
 
  |last=Hill
 
  |last=Hill
−
  |first=G.
+
  |init=G
 
  |author-link=George Hill
 
  |author-link=George Hill
 
  |title=Circumcision for phimosis and other medical indications in Western Australian boys
 
  |title=Circumcision for phimosis and other medical indications in Western Australian boys
Line 98: Line 95:
 
  |last=Denniston
 
  |last=Denniston
 
  |first=George C.
 
  |first=George C.
 +
|init=GC
 
  |author-link=
 
  |author-link=
 
  |last2=Hill
 
  |last2=Hill
 
  |first2=George
 
  |first2=George
 +
|init2=G
 
  |author2-link=
 
  |author2-link=
 
  |etal=no
 
  |etal=no
 
  |title=Gairdner was wrong
 
  |title=Gairdner was wrong
−
|trans-title=
 
−
|language=
 
 
  |journal=Can Fam Physician
 
  |journal=Can Fam Physician
 
  |date=2010-10-01
 
  |date=2010-10-01
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== Current view ==
 
== Current view ==
  
−
Almost all boys are born with the foreskin fused with the underlying glans penis by the [[synechia]]. Most also have a narrow foreskin that cannot retract. Non-retractile foreskin is normal at birth and remains common until after puberty (age 18). Some boys develop retractile foreskin earlier, and about 2 percent of males have a non-retractile foreskin throughout life. Non-retractile foreskin is not a disease and does not require treatment.  
+
Almost all boys are born with the inner [[foreskin]] mucosa fused with the underlying [[glans penis]] by the [[synechia]].<ref name="agarwal2005" /> Most also have a narrow [[foreskin]] that cannot retract. Non-retractile foreskin is normal at birth and remains in the normal range until after puberty (age 18).<ref name="agarwal2005" /> The non-retractile [[foreskin]] is nature's way of protecting the young boy from [[meatal stenosis]] and [[infection]] in the [[preputial sac]].
 +
 
 +
Some boys develop retractile foreskin earlier, and about 2 percent of males have a non-retractile foreskin throughout life. Non-retractile foreskin is not a disease and does not require treatment.  
  
 
There are three possible conditions that cause non-retractile foreskin:  
 
There are three possible conditions that cause non-retractile foreskin:  
  
 
* Tightness of the foreskin orifice  
 
* Tightness of the foreskin orifice  
−
* Fusion of the foreskin with the glans penis<ref name="deibart1933">{{REFjournal
+
* Fusion of the [[foreskin]] with the [[glans penis]]<ref name="deibart1933">{{REFjournal
 
  |last=Deibart
 
  |last=Deibart
−
  |first=G.A.
+
  |init=GA
 
  |title=The separation of the prepuce in the human penis
 
  |title=The separation of the prepuce in the human penis
 
  |journal=Anat Rec
 
  |journal=Anat Rec
Line 142: Line 141:
 
  |accessdate=2019-10-07
 
  |accessdate=2019-10-07
 
}}</ref>   
 
}}</ref>   
−
* Frenulum breve (which is rare and cannot be diagnosed until the previous two reasons have been eliminated)  
+
* [[Frenulum breve]] (which is rare and cannot be diagnosed until the previous two reasons have been eliminated).
  
−
The first two reasons are normal in childhood and are not pathological in children. The third can be treated conservatively, retaining the foreskin.
+
The first two reasons are normal in childhood and are not pathological in children.<ref name="agarwal2005" /> The third can be treated conservatively, retaining the [[foreskin]].
  
 
== Infants and pre-school ==
 
== Infants and pre-school ==
  
−
Kayaba ''et al''. (1996) reported that before six months of age, no boy had a retractable prepuce; 16.5 percent of boys aged 3-4 had a fully retractable prepuce.<ref name="kayaba1996">{{REFjournal
+
Kayaba et al. (1996) reported that before six months of age, no boy had a retractable [[prepuce]]; 16.5 percent of boys aged 3-4 had a fully retractable [[prepuce]].<ref name="kayaba1996">{{REFjournal
 
  |last=Kayaba
 
  |last=Kayaba
−
  |first=H.
+
  |init=H
 
  |last2=Tamura
 
  |last2=Tamura
−
  |first2=H.
+
  |init2=H
 
  |last3=Kitajima
 
  |last3=Kitajima
−
  |first3=S.
+
  |init3=S
 
  |etal=yes
 
  |etal=yes
 
  |title=Analysis of shape and retractability of the prepuce in 603 Japanese boys
 
  |title=Analysis of shape and retractability of the prepuce in 603 Japanese boys
Line 168: Line 167:
 
  |date=1996-11-01
 
  |date=1996-11-01
 
  |accessdate=2019-10-19
 
  |accessdate=2019-10-19
−
}}</ref> Imamura (1997) examined 4521 infants and young boys. He re-ported that the foreskin is retractile in 3 percent of infants aged one to three months, 19.9 percent of those aged ten to twelve months, and 38.4 percent of three-year-old boys.<ref name="imamura1997">{{REFjournal
+
}}</ref> Imamura (1997) examined 4521 infants and young boys. He reported that the [[foreskin]] is retractile in 3 percent of infants aged one to three months, 19.9 percent of those aged ten to twelve months, and 38.4 percent of three-year-old boys.<ref name="imamura1997">{{REFjournal
 
  |last=Imamura
 
  |last=Imamura
−
  |first=E.
+
  |init=E
 
  |title=Phimosis of infants and young children in Japan
 
  |title=Phimosis of infants and young children in Japan
 
  |journal=Acta Paediatr Jpn
 
  |journal=Acta Paediatr Jpn
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}}</ref> Ishikawa & Kawakita (2004) reported no retractability at age one, (but increasing to 77 percent at age 11-15).<ref>{{REFjournal
 
}}</ref> Ishikawa & Kawakita (2004) reported no retractability at age one, (but increasing to 77 percent at age 11-15).<ref>{{REFjournal
 
  |last=Ishikawa
 
  |last=Ishikawa
−
  |first=E.
+
  |init=E
 
  |last2=Kawakita
 
  |last2=Kawakita
−
  |first2=M.
+
  |init2=M
 
  |title=Preputial development in Japanese boys
 
  |title=Preputial development in Japanese boys
 
  |journal=Hinyokika Kiyo
 
  |journal=Hinyokika Kiyo
Line 200: Line 199:
 
  |date=2004
 
  |date=2004
 
  |accessdate=2019-11-08
 
  |accessdate=2019-11-08
−
}}</ref> Ko ''et al''. (2007) examined 59 newborn Taiwanese boys. Not one had a retractable foreskin.<ref name="ko2007">{{REFjournal
+
}}</ref> Ko et al. (2007) examined 59 newborn Taiwanese boys. Not one had a retractable [[foreskin]].<ref name="ko2007">{{REFjournal
 
  |last=Ko
 
  |last=Ko
 
  |first=Ming-Chung
 
  |first=Ming-Chung
 +
|init=MC
 
  |author-link=
 
  |author-link=
 
  |last2=Liu
 
  |last2=Liu
 
  |first2=Chih-Kuang
 
  |first2=Chih-Kuang
 +
|init2=CK
 
  |author2-link=
 
  |author2-link=
 
  |last3=Lee  
 
  |last3=Lee  
 
  |first3=Wen-Kai
 
  |first3=Wen-Kai
 +
|init3=WK
 
  |author3-link=
 
  |author3-link=
 
  |last4=Jeng
 
  |last4=Jeng
 
  |first4=Huey-Sheng
 
  |first4=Huey-Sheng
 +
|init4=HS
 
  |author4-link=
 
  |author4-link=
 
  |last5=Chiang
 
  |last5=Chiang
 
  |first5=Han-Sun
 
  |first5=Han-Sun
 +
|init5=HS
 
  |author5-link=
 
  |author5-link=
 
  |last6=Li
 
  |last6=Li
 
  |first6=Chung-Yi
 
  |first6=Chung-Yi
 +
|init6=CY
 
  |author6-link=
 
  |author6-link=
 
  |etal=no
 
  |etal=no
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}}</ref>
 
}}</ref>
  
−
Non-retractile foreskin is the normal, expected, and more usual condition in this age group.<ref name="agawal2005">{{REFjournal
+
Non-retractile [[foreskin]] is the normal, expected, and more usual condition in this age group.<ref name="agarwal2005" /> Harmless [[ballooning of the foreskin]] may occur in this age group.
−
|last=Agawal
 
−
|first=Abhnav
 
−
|author-link=
 
−
|last2=Mohta
 
−
|first2=Anup
 
−
|author2-link=
 
−
|last3=Anand
 
−
|first3=Ritesh K.
 
−
|author3-link=
 
−
|etal=no
 
−
|title=Preputial retraction in children
 
−
|trans-title=
 
−
|language=
 
−
|journal=Journal of Indian Association of Pediatric Surgeons
 
−
|location=
 
−
|date=2005
 
−
|volume=10
 
−
|issue=2
 
−
|pages=89-91
 
−
|url=http://www.jiaps.com/article.asp?issn=0971-9261;year=2005;volume=10;issue=2;spage=89;epage=91;aulast=Agarwal
 
−
|quote=
 
−
|pubmedID=
 
−
|pubmedCID=
 
−
|DOI=10.4103/0971-9261.16468
 
−
|accessdate=2019-12-09
 
−
}}</ref>
 
  
 
== School-age and adolescence ==
 
== School-age and adolescence ==
−
[[File:Kayaba.jpg|left|frame|Percentage of boys with tight ring totally non-retractile foreskin according to Kayaba ''et al''.]]<br clear="all">
+
[[File:Kayaba.jpg|left|frame|Percentage of boys with tight ring totally non-retractile foreskin according to Kayaba et al.]]<br clear="all">
  
−
[[Jakob Øster]], a Danish physician who conducted school examinations, reported his findings on the examination of school-boys in Denmark, where circumcision is rare.<ref name="Øster1968">{{Template:Jakob_Øster_1968}}</ref> Øster (1968) found that the incidence of fusion of the foreskin with the glans penis steadily declines with increasing age and foreskin retractability increases with age.<ref name="Øster1968"/> Kayaba ''et al''. (1996) also investigated the development of foreskin retraction in boys from age 0 to age 15.5 Kayaba ''et al''. also reported increasing retractability with increasing age. Kayaba ''et al''. reported that about only 42 percent of boys aged 8-10 have fully retractile foreskin, but the percentage increases to 62.9 percent in boys aged 11-15.<ref name="kayaba1996" /> Imamura (1997) reported that 77 percent of boys aged 11-15 had retractile foreskin.<ref name="imamura1997" /> Thorvaldsen & Meyhoff (2005) conducted a survey of 4000 young men in Denmark.9 They report that the mean age of first foreskin retraction is 10.4 years in Denmark.<ref name="Thorvaldsen">{{REFjournal
+
[[Jakob Øster]], a Danish physician who conducted school examinations, reported his findings on the examination of school-boys in [[Denmark]], where [[circumcision]] is rare.<ref name="Øster1968">{{OesterJ 1968}}</ref> Øster (1968) found that the incidence of fusion of the [[foreskin]] with the [[glans penis]] steadily declines with increasing age and foreskin retractability increases with age.<ref name="Øster1968"/> Kayaba et al. (1996) also investigated the development of foreskin retraction in boys from age 0 to age 15.5 Kayaba et al. also reported increasing retractability with increasing age. Kayaba et al. reported that about only 42 percent of boys aged 8-10 have fully retractile foreskin, but the percentage increases to 62.9 percent in boys aged 11-15.<ref name="kayaba1996" /> Imamura (1997) reported that 77 percent of boys aged 11-15 had retractile foreskin.<ref name="imamura1997" /> Thorvaldsen & Meyhoff (2005) conducted a survey of 4000 young men in [[Denmark]]. They reported that the mean age of first foreskin retraction is 10.4 years in [[Denmark]].<ref name="Thorvaldsen">{{REFjournal
 
  |last=Thorvaldsen
 
  |last=Thorvaldsen
−
  |first=M.A.
+
  |init=MA
 
  |last2=Meyhoff
 
  |last2=Meyhoff
−
  |first2=H.
+
  |init2=H
 
  |title=Patologisk eller fysiologisk fimose?
 
  |title=Patologisk eller fysiologisk fimose?
 
  |trans-title=Pathological or physiological phimosis?
 
  |trans-title=Pathological or physiological phimosis?
Line 291: Line 270:
 
[[File:Oester.jpg|left|frame|Percentage of boys with fused foreskin by age according to Øster]]<br clear="all">
 
[[File:Oester.jpg|left|frame|Percentage of boys with fused foreskin by age according to Øster]]<br clear="all">
  
−
Ko ''et al''. (2007) examined 1145 Taiwanese boys aged 7 to 13. Ko ''et al''. reported:
+
Ko et al. (2007) examined 1145 Taiwanese boys aged 7 to 13. Ko et al. reported:
 
<blockquote>
 
<blockquote>
 
Our findings indicate that the degree of preputial retractability increases with age, while the prevalence of unretractable prepuce decreases with age. By the age of 13 years, very few boys (some 0.3%) still had an unretractable prepuce (i.e. type 1 prepuce).<ref name="ko2007" /></blockquote>
 
Our findings indicate that the degree of preputial retractability increases with age, while the prevalence of unretractable prepuce decreases with age. By the age of 13 years, very few boys (some 0.3%) still had an unretractable prepuce (i.e. type 1 prepuce).<ref name="ko2007" /></blockquote>
  
−
The findings reported by Ko ''et al."' are consistent with the findings reported by Øster (1968), by Kayaba ''et al''. (1996), and by Thorvaldsen & Meyhoff (2005)
+
The findings reported by Ko et al. are consistent with the findings reported by Øster (1968), by Kayaba et al. (1996), and by Thorvaldsen & Meyhoff (2005)
  
 
== Discussion ==
 
== Discussion ==
  
−
Boys usually are born with a non-retractile foreskin. The foreskin gradually becomes retractable over a variable period of time ranging from birth to 18 years or more.<ref name="Øster1968"/><ref name="Thorvaldsen"/> There is no “right” age for the foreskin to become retractable. Non-retractile foreskin does not threaten health in childhood and no intervention is necessary. Many boys only develop a retractable foreskin after puberty. Education of concerned parents usually is the only action required.<ref>{{REFjournal
+
Boys are born with a non-retractile foreskin.<ref name="agarwal2005" /> The [[foreskin]] gradually becomes retractable over a variable period of time ranging from birth to 18 years or more.<ref name="Øster1968"/><ref name="Thorvaldsen"/> There is no “right” age for the foreskin to become retractable. Non-retractile foreskin does not threaten health so no intervention is necessary. Many boys only develop a retractable foreskin after puberty. Education of concerned parents usually is the only action required.<ref>{{REFjournal
 
  |last=Spilsbury
 
  |last=Spilsbury
−
  |first=K.
+
  |init=K
 
  |last2=Semmens
 
  |last2=Semmens
−
  |first2=J.B.
+
  |init2=JB
 
  |last3=Wisniewski
 
  |last3=Wisniewski
−
  |first3=Z.S.
+
  |init3=ZS
 
  |etal=yes
 
  |etal=yes
 
  |title=Circumcision for phimosis and other medical indications in Western Australian boys
 
  |title=Circumcision for phimosis and other medical indications in Western Australian boys
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== Avoidance of premature retraction ==
 
== Avoidance of premature retraction ==
  
−
Care-givers and healthcare providers must be careful to avoid [[forced retraction|premature retraction]] of the foreskin, which is contrary to medical recommendations, painful, traumatic, tears the attachment points (synechiae), may cause infection, is likely to generate medico-legal problems, and may cause paraphimosis, with the tight foreskin acting like a tourniquet. The first person to retract the boy’s foreskin should be the boy himself.<ref name="Wright1994"/> <ref>{{REFweb
+
Care-givers and healthcare providers must be careful to avoid [[forced retraction|premature retraction]] of the foreskin, which is contrary to medical recommendations, painful, traumatic, tears the attachment points (synechiae), may cause [[infection]], is likely to generate medico-legal issues, and may cause [[paraphimosis]], with the tight foreskin acting like a tourniquet. The first person to retract the boy’s [[foreskin]] should be the boy himself.<ref name="Wright1994"/> <ref name="agarwal2005" />  <ref>{{REFweb
 
  |url=https://www.doctorsopposingforcibleretraction.org/
 
  |url=https://www.doctorsopposingforcibleretraction.org/
 
  |title=Doctors Opposing Forcible Retraction
 
  |title=Doctors Opposing Forcible Retraction
−
|trans-title=
 
−
|language=
 
 
  |last=
 
  |last=
 
  |first=
 
  |first=
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== Making the foreskin retractable ==
 
== Making the foreskin retractable ==
  
−
Teen boys who still have a non-retractable foreskin (about 10 percent of boys) should start stretching exercises to make the foreskin retractable in preparation for adult life.
+
Teen boys who still have a non-retractable [[foreskin]] (about 10 percent of boys) should start [[stretching]] exercises to make the foreskin retractable in preparation for adult life.
  
 
Occasionally a male reaches adulthood with a non-retractile foreskin. Some men with a non-retractile foreskin happily go through life and father children. Other men, however, may want to make their foreskin retractile.  
 
Occasionally a male reaches adulthood with a non-retractile foreskin. Some men with a non-retractile foreskin happily go through life and father children. Other men, however, may want to make their foreskin retractile.  
 +
 +
===Fixing a narrow foreskin===
  
 
The foreskin can be made retractable by:  
 
The foreskin can be made retractable by:  
  
−
* Manual stretching<ref>{{REFjournal
+
* Manual [[stretching]]<ref>{{REFjournal
 
  |last=Dunn
 
  |last=Dunn
−
  |first=H.P.
+
  |init=HP
 
  |title=Non-surgical management of phimosis
 
  |title=Non-surgical management of phimosis
 
  |journal=Aust N Z J Surg
 
  |journal=Aust N Z J Surg
Line 363: Line 342:
 
}}</ref><ref>{{REFjournal
 
}}</ref><ref>{{REFjournal
 
  |last=Beaugé
 
  |last=Beaugé
−
  |first=M.
+
  |init=M
 
  |title=The causes of adolescent phimosis
 
  |title=The causes of adolescent phimosis
 
  |journal=Br J Sex Med
 
  |journal=Br J Sex Med
Line 377: Line 356:
 
  |accessdate=2019-10-18
 
  |accessdate=2019-10-18
 
}}</ref>
 
}}</ref>
−
* Application of topical steroid ointment<ref>{{REFjournal
+
* Application of topical steroid ointment to assist the stretching.<ref>{{REFjournal
 
  |last=Orsola
 
  |last=Orsola
−
  |first=A.
+
  |init=A
 
  |last2=Caffaratti
 
  |last2=Caffaratti
−
  |first2=J.
+
  |init2=J
 
  |last3=Garat
 
  |last3=Garat
−
  |first3=J.M.
+
  |init3=JM
 
  |title=Conservative treatment of phimosis in children using a topical steroid
 
  |title=Conservative treatment of phimosis in children using a topical steroid
 
  |journal=Urology
 
  |journal=Urology
Line 398: Line 377:
 
}}</ref><ref>{{REFjournal
 
}}</ref><ref>{{REFjournal
 
  |last=Ashfield
 
  |last=Ashfield
−
  |first=J.E.
+
  |init=JE
 
  |last2=Nickel
 
  |last2=Nickel
−
  |first2=K.R.
+
  |init2=KR
 
  |last3=Siemens
 
  |last3=Siemens
−
  |first3=D.R.
+
  |init3=DR
 
  |etal=yes
 
  |etal=yes
 
  |title=Treatment of phimosis with topical steroids in 194 children
 
  |title=Treatment of phimosis with topical steroids in 194 children
Line 418: Line 397:
 
}}</ref>
 
}}</ref>
  
−
Male circumcision is outmoded as a treatment for non-retractile foreskin, but it is still recommended by many urologists because of lack of adequate information, and perhaps because of the [[Financial Incentive|profit to the doctor]] associated with circumcision. Nevertheless, [[circumcision]] should be avoided because of pain, trauma, cost,<ref name="Van Howe">{{REFjournal
+
See [[Phimosis]] for more information.
 +
 
 +
===Fixing a fused foreskin===
 +
 
 +
In a few cases, the [[Synechia| synechial]] fusion of childhood lingers past puberty. After puberty, the synechial fusion should be about ready to spontaneously release the [[foreskin]] from the [[glans penis]]. One may try gently peeling the [[foreskin]] away from the glans penis by using one's thumbs. It may take one several tries to get it all separated. Do ''not'' force anything and do ''not'' cause cause yourself pain.
 +
 
 +
Apply petroleum jelly after separation occurs for about two weeks to prevent re-adhesion.
 +
 
 +
If one is unsuccessful, then one may need to consult a urologist.
 +
 
 +
===Issues with circumcision as treatment===
 +
 
 +
[[Adolescent and adult circumcision| Male circumcision]] is outmoded as a treatment for non-retractile foreskin, but it is still recommended by many [[Issues with American urologists and the practice of male circumcision| urologists]] because of lack of adequate information, and perhaps because of the [[Financial Incentive|profit to the doctor]] associated with circumcision. Nevertheless, [[Adolescent and adult circumcision| circumcision]] should be avoided whenever possible because of [[pain]], [[trauma]], cost,<ref name="Van Howe">{{REFjournal
 
  |last=Van Howe
 
  |last=Van Howe
−
  |first=RS
+
  |init=RS
 +
|author-link=Robert S. Van Howe
 
  |title=Cost-effective treatment of phimosis
 
  |title=Cost-effective treatment of phimosis
 
  |journal=Pediatrics
 
  |journal=Pediatrics
Line 436: Line 428:
 
}}</ref><ref>{{REFjournal
 
}}</ref><ref>{{REFjournal
 
  |last=Berdeu
 
  |last=Berdeu
−
  |first=D.
+
  |init=D
 
  |last2=Sauze
 
  |last2=Sauze
−
  |first2=L.
+
  |init2=L
 
  |last3=Ha-Vinh
 
  |last3=Ha-Vinh
−
  |first3=P.
+
  |init3=P
 
  |last4=Blum-Boisgard
 
  |last4=Blum-Boisgard
−
  |first4=C.
+
  |init4=C
 
  |title=Cost-effectiveness analysis of treatments for phimosis: a comparison of surgical and medicinal approaches and their economic effect.
 
  |title=Cost-effectiveness analysis of treatments for phimosis: a comparison of surgical and medicinal approaches and their economic effect.
 
  |journal=BJU Int
 
  |journal=BJU Int
Line 455: Line 447:
 
  |date=2001-02-01
 
  |date=2001-02-01
 
  |accessdate=2019-10-17
 
  |accessdate=2019-10-17
−
}}</ref> complications,<ref name="Van Howe"/> difficult recovery, [[Circumcision scar| permanent injury to the appearance of the penis]], loss of pleasurable erogenous sensation,<ref>{{REFjournal
+
}}</ref> [[Complication| complications]],<ref name="Van Howe"/> difficult recovery, [[Circumcision scar| permanent injury to the appearance of the penis]], extreme loss of [[Foreskin sensitivity| pleasurable erogenous sensation]],<ref>{{REFjournal
 
  |last=Williams
 
  |last=Williams
−
  |first=N.
+
  |init=N
 
  |last2=Kapila
 
  |last2=Kapila
−
  |first2=L.
+
  |init2=L
 
  |title=Complications of circumcision
 
  |title=Complications of circumcision
 
  |journal=Brit J Surg
 
  |journal=Brit J Surg
Line 474: Line 466:
 
}}</ref> impairment of erectile and ejaculatory functions,<ref>{{REFjournal
 
}}</ref> impairment of erectile and ejaculatory functions,<ref>{{REFjournal
 
  |last=Shen
 
  |last=Shen
−
  |first=Z.
+
  |init=Z
 
  |last2=Chen
 
  |last2=Chen
−
  |first2=S.
+
  |init2=S
 
  |last3=Zhu
 
  |last3=Zhu
−
  |first3=C.
+
  |init3=C
 
  |etal=yes
 
  |etal=yes
 
  |title=Erectile function evaluation after adult circumcision
 
  |title=Erectile function evaluation after adult circumcision
Line 494: Line 486:
 
}}</ref><ref>{{REFjournal
 
}}</ref><ref>{{REFjournal
 
  |last=Masood
 
  |last=Masood
−
  |first=S.
+
  |init=S
 
  |last2=Patel
 
  |last2=Patel
−
  |first2=H.R.H.
+
  |init2=HRH
 
  |last3=Himpson
 
  |last3=Himpson
−
  |first3=R.C.
+
  |init3=RC
 
  |etal=yes
 
  |etal=yes
 
  |title=Penile sensitivity and sexual satisfaction after circumcision: Are we informing men correctly?
 
  |title=Penile sensitivity and sexual satisfaction after circumcision: Are we informing men correctly?
Line 512: Line 504:
 
  |date=2005
 
  |date=2005
 
  |accessdate=2019-10-17
 
  |accessdate=2019-10-17
−
}}</ref> and adverse sexual and [[Psychological issues of male circumcision| psychological]] effects.
+
}}</ref> and adverse [[Sexual effects of circumcision| sexual]] and [[Psychological issues of male circumcision| psychological]] effects.
 +
 
 +
According to Agarwal et al. (2005):
 +
<blockquote>
 +
Although circumcision is considered to be a simple procedure devoid of much morbidity, it is associated with many complications like hemorrhage, edema, infection, meatal stenosis, urethral fistulae, unsightly scars, penile curvature, shortness of shaft skin, and partial, or total penile loss. … In view of the various studies including the present one and the versatile use of preputial skin as a graft, it is suggested that circumcision should be avoided as far as possible especially for nonseparation of prepuce in early childhood.<ref name="agarwal2005" />
 +
</blockquote>
  
 +
==Adult foreskin==
 +
===Should the foreskin retract automatically when the penis becomes erect?===
 +
The answer to this question depends on the relative length of the [[foreskin]] in relation to the length of the [[penis]]. If the foreskin is shorter than the erect penis, then it will retract automatically on [[erection]]. On the other hand, if the foreskin is longer than the erect penis, then automatic retraction will not occur. This condition is not viewed as a problem.
 +
 +
A very few of the longest foreskins will not stay retracted when manually retracted. Instead, they will spontaneously [[gliding action| glide]] forward when released. This harmless condition is believed to be very rare.
 +
 +
<i>See [[Foreskin#Foreskin_length| Foreskin length]].</i>
 
{{SEEALSO}}
 
{{SEEALSO}}
 +
* [[Attachment of the foreskin]]
 +
* [[Ballooning of the foreskin]]
 +
* [[Forced retraction]]
 +
* [[Foreskin Care for Boys]]
 +
* [[Foreskin sensitivity]]
 
* [[Gliding action]]
 
* [[Gliding action]]
−
* [[Forced retraction]]
+
* [[Penis]]
 
* [[Phimosis]]
 
* [[Phimosis]]
 +
* [[Preputioplasty]]
 +
* [[Stretching]]
 
* [[Synechia]]
 
* [[Synechia]]
 +
* [[Risks and complications]]
 +
* [[Tissue expansion]]
  
 
{{LINKS}}
 
{{LINKS}}
−
 
+
* {{REFdocument
 +
|title=When Your Baby Boy is Not Circumcised
 +
|url=https://pool.intactiwiki.org/w/images/1982-02_Wallerstein-WhenYourBabyBoyIsNotCircumcised.pdf
 +
|language=English
 +
|last=Wallerstein
 +
|first=Edward
 +
|author-link=Edward Wallerstein
 +
|publisher=Pennypress
 +
|location=Seattle
 +
|format=Four-page pamphlet
 +
|date=1982-02
 +
|accessdate=2021-05-14
 +
}}
 
* {{REFweb
 
* {{REFweb
 
  |url=http://www.nocirc.org/publish/6pam.pdf
 
  |url=http://www.nocirc.org/publish/6pam.pdf
Line 536: Line 561:
 
  |format=
 
  |format=
 
  |quote=The  first  person  to  retract  a  child’s  foreskin  should  be the child himself.
 
  |quote=The  first  person  to  retract  a  child’s  foreskin  should  be the child himself.
 +
}}
 +
 +
* {{REFweb
 +
|url=http://www.doctorsopposingcircumcision.org/wp-content/uploads/2016/04/Development_of_Retractile_Foreskin_in_the_Child_and_Adolescent_07_26_13.pdf
 +
|archived=
 +
|title=The Development of Retractile Foreskin in the Child and Adolescent
 +
|last=Sorrells
 +
|first=Morrie
 +
|author-link=
 +
|publisher=[[Doctors Opposing Circumcision (D.O.C.)]]
 +
|website=
 +
|date=2008
 +
|accessdate=2020-08-13
 +
|format=PDF
 +
|quote=Male circumcision is an outmoded treatment for non-retractile foreskin, but it is still recommended by many urologists because of lack of adequate information and understanding of alternative methods of relief. Nevertheless, circumcision should be avoided because of pain, trauma, cost, complications, difficult recovery, permanent injury to the appearance of the penis, loss of pleasurable erogenous sensation, and impairment of erectile and ejaculatory functions.
 
}}
 
}}
  
Line 553: Line 593:
 
  |quote=
 
  |quote=
 
}}
 
}}
−
 
+
* {{REFweb
 +
|url=http://www.intactaus.org/information/functionsoftheforeskin/
 +
|title=Functions of the Foreskin
 +
|last=Helard
 +
|first=Lou
 +
|author-link=
 +
|publisher=Intact Australia
 +
|website=
 +
|date=2014-08-01
 +
|accessdate=2020-05-29
 +
|format=
 +
|quote=
 +
}}
 
* {{REFdocument
 
* {{REFdocument
 
  |title=Care of the Intact (Not Circumcised) Penis in the Young Child
 
  |title=Care of the Intact (Not Circumcised) Penis in the Young Child
Line 560: Line 612:
 
  |last=
 
  |last=
 
  |first=
 
  |first=
−
  |publisher=''Doctors Opposing Circumcision''
+
  |publisher=[[Doctors Opposing Circumcision (D.O.C.)]]
 
  |format=PDF
 
  |format=PDF
 
  |date=2016-07
 
  |date=2016-07
 
  |accessdate=2019-11-08
 
  |accessdate=2019-11-08
 
}}
 
}}
−
 
 
* {{REFweb
 
* {{REFweb
−
  |url=https://www.tightforeskin.org/my-son.html
+
  |url=https://www.rch.org.au/clinicalguide/guideline_index/The_penis_and_foreskin/
−
  |title=Does my son have phimosis?
+
|archived=
 +
  |title=The penis and foreskin
 
  |trans-title=
 
  |trans-title=
−
  |language=
+
  |language=English
 
  |last=
 
  |last=
 
  |first=
 
  |first=
 
  |author-link=
 
  |author-link=
−
  |publisher=
+
  |publisher=Royal Children's Hospital of Melbourne
−
  |website=www.tightforeskin.org
+
  |website=www.rch.org.au
−
  |date=
+
  |date=2018-07
−
  |accessdate=2019-11-23
+
  |accessdate=2020-07-06
 
  |format=
 
  |format=
 
  |quote=
 
  |quote=
 
}}
 
}}
 +
* {{REFweb
 +
|url=https://intactamerica.org/ask-marilyn-the-doctor-is-wrong-your-sons-foreskin-is-not-too-tight/
 +
|title=Ask Marilyn – The Doctor Is Wrong: Your Son’s Foreskin Is Not Too Tight
 +
|last=Milos
 +
|first=Marilyn
 +
|init=
 +
|author-link=Marilyn Fayre Milos
 +
|publisher=Intact America
 +
|date=2022-03-28
 +
|accessdate=2024-06-21
 +
}}
 +
* {{#tip-text:NSFW|Not Safe For Work - the following link may contain graphic content!}} [http://www.circumstitions.com/Works.html How the foreskin works]
  
 
{{REF}}
 
{{REF}}
  
 +
 +
[[Category:Education]]
 
[[Category:Physiology]]
 
[[Category:Physiology]]
 +
[[Category:Parental information]]
  
 
[[Category:From Intactipedia]]
 
[[Category:From Intactipedia]]
 
[[Category:From IntactWiki]]
 
[[Category:From IntactWiki]]
 +
 +
[[de:Zurückziehen der Vorhaut]]

Latest revision as of 16:31, 7 July 2024

IntactiWikiGraphicWarning.png

A human penis before and after retraction of the foreskin.

Infant boys are born with a non-retractable foreskin.[1] The development of retractable foreskin occurs gradually over a widely-variable number of years.

In the majority of adult men, the foreskin normally retracts to reveal the head of the penis. In newborns, it is normal for the foreskin to be fused to the head of the penis by the synechia, thus rendering it non-retractable.[1] The preputial sac is sealed by the synechia.[2] The foreskin usually separates from the glans and becomes retractable with increasing age.[1] There is much uncertainty among health care workers about when the foreskin of a boy should become retractable.[3] The mistaken belief that the foreskin was supposed to be retractable at the time of birth of the infant has led to a characterization of the genitalia of most infant males as defective at birth. This has led to many false diagnoses of phimosis, followed by unnecessary circumcision, when, in fact, the foreskin is developmentally normal. There is no one correct age for the foreskin to become retractable.[1]

Normally, developmental non-retractability does not cause any problems, in fact, it is protective of the glans penis and protects against meatal stenosis.[1] Non-retractability may be deemed pathological if it causes problems, such as difficulty urinating or performing normal sexual functions, but even then, this is rare, and, if the non-retractability itself is not caused by pathological inflammation, it cannot be called "pathological" or "true phimosis." A foreskin that is so narrow it will retract very little or not at all, but is not the result of a pathological inflammation, is accurately termed preputial stenosis (narrow prepuce), and will respond to treatment including steroid creams, manual stretching, and changing masturbation habits.

History

The first data on development of retractile foreskin were provided in 1949 by the famous British paediatrician, Douglas Gairdner.[4] His data have been incorporated into many textbooks and is still being repeated in the medical literature today. Gairdner said that 80 percent of boys should have a retractable foreskin by the age of two years, and 90 percent of boys should have a retractable prepuce by the age of three years.[4]

Unfortunately, Gairdner’s data are inaccurate,[5] [6] [7] so most healthcare providers have been taught inaccurate data.[6] Retractability usually occurs much later than previously believed.[5] This page provides accurate data, derived from newer and better studies, for healthcare providers.

Current view

Almost all boys are born with the inner foreskin mucosa fused with the underlying glans penis by the synechia.[1] Most also have a narrow foreskin that cannot retract. Non-retractile foreskin is normal at birth and remains in the normal range until after puberty (age 18).[1] The non-retractile foreskin is nature's way of protecting the young boy from meatal stenosis and infection in the preputial sac.

Some boys develop retractile foreskin earlier, and about 2 percent of males have a non-retractile foreskin throughout life. Non-retractile foreskin is not a disease and does not require treatment.

There are three possible conditions that cause non-retractile foreskin:

  • Tightness of the foreskin orifice
  • Fusion of the foreskin with the glans penis[8]
  • Frenulum breve (which is rare and cannot be diagnosed until the previous two reasons have been eliminated).

The first two reasons are normal in childhood and are not pathological in children.[1] The third can be treated conservatively, retaining the foreskin.

Infants and pre-school

Kayaba et al. (1996) reported that before six months of age, no boy had a retractable prepuce; 16.5 percent of boys aged 3-4 had a fully retractable prepuce.[9] Imamura (1997) examined 4521 infants and young boys. He reported that the foreskin is retractile in 3 percent of infants aged one to three months, 19.9 percent of those aged ten to twelve months, and 38.4 percent of three-year-old boys.[10] Ishikawa & Kawakita (2004) reported no retractability at age one, (but increasing to 77 percent at age 11-15).[11] Ko et al. (2007) examined 59 newborn Taiwanese boys. Not one had a retractable foreskin.[12]

Non-retractile foreskin is the normal, expected, and more usual condition in this age group.[1] Harmless ballooning of the foreskin may occur in this age group.

School-age and adolescence

Percentage of boys with tight ring totally non-retractile foreskin according to Kayaba et al.


Jakob Øster, a Danish physician who conducted school examinations, reported his findings on the examination of school-boys in Denmark, where circumcision is rare.[13] Øster (1968) found that the incidence of fusion of the foreskin with the glans penis steadily declines with increasing age and foreskin retractability increases with age.[13] Kayaba et al. (1996) also investigated the development of foreskin retraction in boys from age 0 to age 15.5 Kayaba et al. also reported increasing retractability with increasing age. Kayaba et al. reported that about only 42 percent of boys aged 8-10 have fully retractile foreskin, but the percentage increases to 62.9 percent in boys aged 11-15.[9] Imamura (1997) reported that 77 percent of boys aged 11-15 had retractile foreskin.[10] Thorvaldsen & Meyhoff (2005) conducted a survey of 4000 young men in Denmark. They reported that the mean age of first foreskin retraction is 10.4 years in Denmark.[14] Non-retractile foreskin is the more common condition until about 10-11 years of age.

Percentage of boys with fused foreskin by age according to Øster


Ko et al. (2007) examined 1145 Taiwanese boys aged 7 to 13. Ko et al. reported:

Our findings indicate that the degree of preputial retractability increases with age, while the prevalence of unretractable prepuce decreases with age. By the age of 13 years, very few boys (some 0.3%) still had an unretractable prepuce (i.e. type 1 prepuce).[12]

The findings reported by Ko et al. are consistent with the findings reported by Øster (1968), by Kayaba et al. (1996), and by Thorvaldsen & Meyhoff (2005)

Discussion

Boys are born with a non-retractile foreskin.[1] The foreskin gradually becomes retractable over a variable period of time ranging from birth to 18 years or more.[13][14] There is no “right” age for the foreskin to become retractable. Non-retractile foreskin does not threaten health so no intervention is necessary. Many boys only develop a retractable foreskin after puberty. Education of concerned parents usually is the only action required.[15]

Avoidance of premature retraction

Care-givers and healthcare providers must be careful to avoid premature retraction of the foreskin, which is contrary to medical recommendations, painful, traumatic, tears the attachment points (synechiae), may cause infection, is likely to generate medico-legal issues, and may cause paraphimosis, with the tight foreskin acting like a tourniquet. The first person to retract the boy’s foreskin should be the boy himself.[5] [1] [16]

Making the foreskin retractable

Teen boys who still have a non-retractable foreskin (about 10 percent of boys) should start stretching exercises to make the foreskin retractable in preparation for adult life.

Occasionally a male reaches adulthood with a non-retractile foreskin. Some men with a non-retractile foreskin happily go through life and father children. Other men, however, may want to make their foreskin retractile.

Fixing a narrow foreskin

The foreskin can be made retractable by:

See Phimosis for more information.

Fixing a fused foreskin

In a few cases, the synechial fusion of childhood lingers past puberty. After puberty, the synechial fusion should be about ready to spontaneously release the foreskin from the glans penis. One may try gently peeling the foreskin away from the glans penis by using one's thumbs. It may take one several tries to get it all separated. Do not force anything and do not cause cause yourself pain.

Apply petroleum jelly after separation occurs for about two weeks to prevent re-adhesion.

If one is unsuccessful, then one may need to consult a urologist.

Issues with circumcision as treatment

Male circumcision is outmoded as a treatment for non-retractile foreskin, but it is still recommended by many urologists because of lack of adequate information, and perhaps because of the profit to the doctor associated with circumcision. Nevertheless, circumcision should be avoided whenever possible because of pain, trauma, cost,[21][22] complications,[21] difficult recovery, permanent injury to the appearance of the penis, extreme loss of pleasurable erogenous sensation,[23] impairment of erectile and ejaculatory functions,[24][25] and adverse sexual and psychological effects.

According to Agarwal et al. (2005):

Although circumcision is considered to be a simple procedure devoid of much morbidity, it is associated with many complications like hemorrhage, edema, infection, meatal stenosis, urethral fistulae, unsightly scars, penile curvature, shortness of shaft skin, and partial, or total penile loss. … In view of the various studies including the present one and the versatile use of preputial skin as a graft, it is suggested that circumcision should be avoided as far as possible especially for nonseparation of prepuce in early childhood.[1]

Adult foreskin

Should the foreskin retract automatically when the penis becomes erect?

The answer to this question depends on the relative length of the foreskin in relation to the length of the penis. If the foreskin is shorter than the erect penis, then it will retract automatically on erection. On the other hand, if the foreskin is longer than the erect penis, then automatic retraction will not occur. This condition is not viewed as a problem.

A very few of the longest foreskins will not stay retracted when manually retracted. Instead, they will spontaneously glide forward when released. This harmless condition is believed to be very rare.

See Foreskin length.

See also

External links

  • REFweb Sorrells, Morrie (2008). The Development of Retractile Foreskin in the Child and Adolescent Icons-mini-file pdf.svg, Doctors Opposing Circumcision (D.O.C.). Retrieved 13 August 2020.
    Quote: Male circumcision is an outmoded treatment for non-retractile foreskin, but it is still recommended by many urologists because of lack of adequate information and understanding of alternative methods of relief. Nevertheless, circumcision should be avoided because of pain, trauma, cost, complications, difficult recovery, permanent injury to the appearance of the penis, loss of pleasurable erogenous sensation, and impairment of erectile and ejaculatory functions.
Retrieved from "https://en.intactiwiki.org/w/index.php?title=Development_of_retractable_foreskin&oldid=38832"