1, prepuce frenulum is too short: because prepuce frenulum is too short, the penis is completely erect or the traction is too large when the husband and wife live, the frenulum tears and bleeds.

2, the foreskin is too long or phimosis: due to intense sexual exercise, the foreskin is too long or phimosis will lead to the rupture of the foreskin frenum.

3, foreskin phimosis can cause penis inflammation: when phimosis or foreskin is too long and not treated in time, it will cause sebaceous gland secretions to be excreted, which will lead to the formation of a mixture of sebum and urine sediments, which will become cheese-like, that is, smelly "skin scale."

4. Lack of sexual knowledge. Many male friends are lacerated because of lack of sexual knowledge. Many newly-married men have cases of foreskin laceration, which is due to the man's lack of sexual knowledge and patience in husband and wife's life, or the tenacity of hymen or vaginal spasm, and the foreskin pulls the foreskin laceration because of resistance.

5, excessive masturbation. Men masturbate too much, especially when masturbation is too intense, it is easy to break their shoelaces.

Guiding opinions:

No matter what kind of situation leads to foreskin laceration, it must be done by a professional andrologist, otherwise it will happen in later life.