Possible causes of foreskin skin rupture: 1, acute circumcision, when bacterial infection occurs, acute circumcision, foreskin can appear red, swollen, tension increases, can form small fissures or acute erosion, exudation, etc., inflammation further development, can appear erosion surface to form superficial ulcers, manifested as skin rupture. This is obviously visible as redness and swelling of the foreskin, and painful symptoms. 2, because of excessive action during sex, resulting in local tearing, especially in the erect penis state at the high tension of the tether, can appear the phenomenon of skin rupture, usually seen after sex, the phenomenon of penile skin and foreskin tearing. 3, chronic circumcision, because of long-term chronic inflammation after the foreskin local thickening, elasticity is poor, after frequent erection Natural chaps can occur, can be accompanied by small fissures, the appearance of the examination of the penile foreskin ring thickening, touching the texture by hand, poor elasticity.