The first bleeding is due to the penis into the vaginal opening caused by hymen rupture or vaginal wall tear bleeding occurs.
1. hymen rupture: there is a layer of hymen around the surface of the female vaginal opening, in the first sexual intercourse, the male penis enters the vagina through the hymen opening, hymen rupture occurs to varying degrees, small blood vessels bleed, most of the bleeding is small and will stop on its own. If the hymen rupture serious, bleeding, need to go to the hospital in time to treat the symptoms of treatment.
2. vaginal wall tear: the first time sex, in the occurrence of hymen rupture at the same time, also does not exclude sex is too rough, resulting in vaginal wall tear and cause bleeding.
The first time if the bleeding is heavy, you need to go to the hospital as soon as possible.