How the Foreskin Works

This shows a man's foreskin being retracted passively, as for cleaning. The action in erection and intercourse is similar (without the wrinkling).

Key Foreskin retraction animation

Circumcision destroys this whole extraordinary structure and function. It always removes most of the nerve-packed ridged band, and often all of it.

Functions of the foreskin

Reasons not to circumcise

Short answers on circumcision

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