Changes

Anatomical investigations have identified the prepuce as a primary erogenous zone in humans.<ref name="ErogenousZones">{{WinkelmannRK 1959}}</ref>  Morgan (1967) addressed the issue in the ''Medical Journal of Australia'':<blockquote>The subcutaneous tissue of the [[glans]] is provided with special sensory receptors that are concerned with appreciating the pleasurable sensations that occur during coitus. They are stimulated normally only when the glans is exposed. In the [[circumcised]] subject these receptors are constantly stimulated and lose their sensitivity. During the act of coitus, the [[uncircumcised]] phallus penetrates smoothly and without friction, the prepuce gradually retracting as the organ advances. In contrast, when the [[circumcised]] organ is introduced during coitus, friction develops between the glans and the vaginal [[mucosa]].<ref name="morgan1967">{{REFjournal |last=Morgan |first=William Keith C. |init=WKC |author-link=William Keith Campbell Morgan |etal=No |title=Penile Plunder |trans-title= |language= |journal=Med J Aust |location= |date=1967-05-27 |volume=1 |issue=21 |pages=1102-3 |url=http://www.cirp.org/library/general/morgan2/ |quote= |pubmedID=4226264 |pubmedCID= |DOI= |accessdate=2024-08-18}}</ref> </blockquote> Falliers (1970) commented on the "sensory pleasure induced by tactile stimulation of the foreskin."<ref name="falliers1970">{{REFjournal