The innervated layer of skin and thin muscle which covers the glans [[penis]]. In Japan, there is a stigma against the foreskin [[phimosis|covering the head]] of the penis in adult men, so most penises depicted on Danbooru have retracted foreskins, and ones with the foreskin prominent are relatively rare.

h4. See also

* [[foreskin biting]]
* [[foreskin insertion]]
* [[foreskin pull]]
* [[circumcised]]
* [[penis]]
* [[phimosis]]
* [[smegma]]
包皮 仮性包茎