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The foreskin, like the eyelid, also serves an important protective and hygienic function. The foreskin protects the delicate [[glans ]] of the [[penis]] and puts the urethra at a distance form its environment, protecting it from foreign contaminants of all kinds while simultaneously shielding the penis from injury. It is a double fold of skin which offers two layers of protection.

The foreskin's inner fold and the glans of the penis are comprised of [[Preputial mucosa| mucous membrane ]] tissue. These are also present in your eyes, mouth, and all other bodily orifices including the female genitals. These are the first line of immunological defensive defense for the body's orifices. These mucous membranes perform many immunological and hygienic functions.