Back to Women's health. There are many reasons why a woman may bleed after sex. The medical name for this is "postcoital bleeding". If you're concerned because you experience vaginal bleeding after sex, seek advice from your GP or a sexual health clinic genitourinary or GUM clinic.

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Nothing kills the mood like discovering blood on the sheets after sex. While it may not be the sexiest part of sex, for many, it's actually quite common. Here are six reasons why you may be bleeding after sex, and when to seek medical attention. Chlamydia, genital herpes, gonorrhea, and trichomoniasis are all sexually transmitted infections.

If you are in the throes of passion and suddenly you spy spots of blood on the bed sheets, it can be alarming and a bit embarrassing if you're in a new relationship. Have you cut yourself? Did you miscalculate your period date? No, so why are you bleeding? Bleeding during or after sex an be unexpected and unnerving in equal measures — but there are a number of reasons this could be happening and it's unlikely to be anything serious, so try not to worry.