But if circumcisers were really motivated by purely medical considerations, the procedure would have died out long ago, along with leeching, skull-drilling, and castration.

• 就女性而言，在性交过程中，尤其是在刚要达到快感时，阴道壁是紧紧包绕着阴茎的，明茎向前推进时，阴茎包皮便滞留在阴茎头以后，形成一个有一定厚度的皮圈；