This happens when the penis is in erect stage. It usually occurs during sexual intercourse when a hard thrush misses the vagina and hit on the woman's pubic bone.

A cracking sound could be heard, and severe pain will be felt in the penis, followed by swelling of the penis. The corpora cavernosa could rupture and blood will leaks into the surrounding tissues.

Surgical procedure is essential to repair the rupture and clear away the blood clots.