Changes

Functions of the [[foreskin]] include protecting the glans penis from abrasion, [[keratinization]] and moistening it by with body oils and moisture to keep it moist, smooth, and glossy with full sensation.<ref name="fleiss-hodges-vanhowe1998">{{FleissP HodgesF VanHoweRS 1998}}</ref> The glans of the [[foreskinned]] [[penis]] under the foreskin normally is kept moist to wet with a mixture of moisture and skin oil by transudation. The foreskin will also collect pre-ejaculate when it is present. There may be a substantial accumulation of beneficial [[smegma]] that has been collecting there harmlessly since birth.