Hello Doctor! I'm 21 years old. Female. I'm 155 cm tall and weighs about 51-52 kgs. I've grown a lot concerned about my health and so I would like to get my doubts cleared. It concerns me a lot when I'm bleeding right after I masturbate. Not that I have long nails. This issue occurred ever since I was 15 years old and has never stopped since then. I would usually ignore as it didn't occur very often. The bleeding appears in light pink to dark bright red sometimes and it never hurts rather I would slightly feel a bit uncomfortable after masturbating. Just so you know, i'm not on any medications or never had a birth control pill. I'm not a virgin either. What could be the reasons? I am desperately in search for an answer regarding this issue. It would be so kind of you if I could get a response as soon as possible. Thank you!