For over a hundred years, anatomical research has confirmed that both the penile and clitoral prepuce (foreskin) are richly innervated, specific erogenous tissue with specialised encapsulated (corpuscular) sensory receptors, such as Meissner's corpuscles, Pacinian corpuscles, genital corpuscles, Krause end bulbs, Ruffini corpuscles, and mucocutaneous corpuscles. These receptors transmit sensations of fine touch, pressure, proprioception, and temperature.
The two primary sensory receptors in primate skin are free nerve endings and encapsulated or corpuscular receptors. While free nerve endings (pain, itch, and temperature receptors) are found in most skin, the encapsulated receptors are concentrated in regions that require specialised touch sensitivity, such as at the fingertips, lips, external genitalia, perianal skin, and transition areas between skin and mucous membranes.
The innervation of the foreskin is impressive  The foreskin is what's known as a specific erogenous zone. This means that it is richly equipped with a high density and concentration of specialized and sophisticated nerve receptors that convey pleasure. The presence of specialized nerves, nerves that do no not exist elsewhere, make this part of the penis especially important. Consequently, this has been studied in detail by respected anatomists for over a century, who have transformed their knowledge by detailed empirical observation of the nerves that are present in the foreskin.
As the most richly innervated part of the penis, the foreskin has the largest number of nerve receptors, as well as the greatest variety of nerve receptors. These specialized nerve endings include:
- Corpuscles of Ruffini,
- Pacinian corpuscles,
- genital end bulbs 
- Genital bodies,
- Merkels disks, Golgi-Mazzoni corpuscles,
- and Vater-Pacinian corpuscles.
These remarkable organs provide the foreskin with its amazing ability to detect the slightest sensations of touch, motion, temperature, and pressure. We are still unaware of all the facts about these fascinating structures. Future research may discover even more nerve receptors in the foreskin and help clarify what purposes they serve. The primary zones of erogenous sensitivity are the frenulum, ridged band of mucosa, and the preputial orifice and the external fold of the foreskin. All of these zones are orgasmic triggers. Continuous gentle stimulation of any one of these areas can elicit pleasure, erection, orgasm, and ejaculation. Some men report that simple retraction of their foreskin causes erection.
Distributed on various areas of the skin, but concentrated in areas especially sensitive to light touch, such as the fingers, lips, nipples and foreskin. They are concentrated in areas of the body denoted as erogenous zones, which include the foreskin, clitoris, lip and nipple. J. R. Taylor (1996) noted their presence in the foreskin, and C.J. Cold & Taylor (1999) reported "Most of the encapsulated receptors of the foreskin are Meissner corpuscles, as they contact the epithelial basement membrane." Early observations were noted by A.S. Dogiel (1893), D. Ohmori (1924), and H. C. Bazett (1935), reported the presence of Meissner's corpuscles in the foreskin. Haiyang et al. (2005) found and measured the density of Meissner's corpuscles on the foreskin. Dong et al. (2007) reported that the quantity of Meissner's corpuscles on the fused smooth mucosa of the foreskin decline with age, but not on the ridged band.
The foreskin has important sexual nerve receptors that are removed during circumcision. Circumcision removes the most sensitive part of a man's penis. The five most sensitive areas of the penis are on the foreskin. The transitional region from the external to the internal foreskin is the most sensitive region of the fully intact penis, and more sensitive than the most sensitive region of the circumcised penis.
In a 2007 study, which was published in BJU International. They physically measured the sensitivity of all the parts of the penis. They used a very accurate pressure sensing probe while the test subject, who’s view was blocked with a screen, reported a sensation of touch. To demonstrate precision they took each measurement multiple times. To no surprise, their results corroborated with the neuro-anatomy that has been discussed previously.
"Five locations on the foreskinned penis that are routinely removed at circumcision were more sensitive than the most sensitive location on the circumcised penis[...] The glans in the circumcised male is less sensitive to fine-touch pressure than the glans of the uncircumcised male[...]The most sensitive location on the circumcised penis is the circumcision scar on the ventral surface [...] When compared to the most sensitive area of the circumcised penis, several locations on the uncircumcised penis that are missing from the circumcised penis were significantly more sensitive."
AAP brushes off findings as inconclusive
In the AAP's 2012 Circumcision Task force report, the issues of sensitivity reduction were given obligatory mention but largely glossed over, and little space was devoted to the topic. The 2012 Task Force Report received overwhelmingly heavy critical comment. The purpose of the disastrous, now expired AAP 2012 report was to encourage neonatal non-therapeutic circumcision and third-party payment so little or nothing was said about the multiple functions of the foreskin. The failed 2012 AAP Circumcision Policy expired in 2017 and has not been re-affirmed or re-validated in any way. The AAP currently has no circumcision policy.
Sorrells study of penis fine-touch sensation.
At right is an easy-to-understand illustration of the Sorrells study showing the loss of tissues. Tissues show in color their relative sensitivity thresholds to light touch. sensitive tissue. On the infographic's opposite side: The AAP's expressed skepticism (quotes from their now expired 2012 Circumcision task force report) on whether loss of all that erogenous tissue could really affect sexual enjoyment.
Arguably, claiming there's no evidence that circumcision diminishes sexual enjoyment is essentially implying the obverse: that it's perfectly safe and reasonable to assume that the human foreskin, despite evolving over millions of years, has no anatomical significance in sexual mechanics, and has zero relevance to sexual pleasure and satisfaction. That statement sounds immediately absurd, however.
García-Mesa et al. (2021) reported: "[s]timulation of genital Meissner's corpuscles gives rise to sexual sensations."
The circumcised penis
The nerves and other structures mentioned in this article are largely missing on the circumcised penis.
The Tantric Intact Penis, Circumstitions. Retrieved 8 January 2022.
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