Changes

The foreskin is a sexual organ. <ref name="hill2017" /> It provides both mechanical and erogenous functions in sexual intercourse, as well as [[pheromone| pheromones]].<ref name="fleiss-hodges-vanhowe1998"/> Winkelmann (1959) classified the foreskin as specific erogenous tissue.<ref name="winklemann1959" /> When the penis becomes erect, the foreskin unfolds to provide the skin necessary to allow the penis to expand to full size and length.

Nature designed the foreskin to be an [[Foreskin sensitivity| erogenous sensory organ]]. <ref name="hill2017" /> The foreskin has a layer of muscle called the [[dartos]] muscle sheath that provides the foreskin with elasticity, flexibility, and stretchiness, which allows full stimulation of the nerves in the [[ridged band]] that sense movement and [[stretching]] to provide [[foreskin sensitivity]]. There is a mucocutaneous region at the tip of the foreskin where outer skin changes to inner [[mucosa]]. Winkelmann (1959) identified the foreskin as a ''specific erogenous zone'' (meaning an area of acute erogenous sensation). Winklemann reported rete ridges in the foreskin with nerves set close to the surface with closely set networks.<ref name="winklemann1959"/>