I am on the depo-provera shot for birth control. i tried masterbation and when i have a orgasm blood comes out. sometimes when i have sex i will orgasm and i will still bleed. but its mostly when masterbating.

The : The source of vaginal bleeding after sex or masturbation involving the insertion of an object is most commonly from the cervix - the part of the uterus that hangs into your vagina. It is most likely just cervical irritation from the friction of sex or masturbation. As long as you are premenopausal, the bleeding is infrequent, and you have normal, regular pap smears, then you don't have to see your doctor for it. If you are postmenopausal, have bleeding that is heavy or every time you have sex or masturbate, or if you have had abnormal paps smears in the past, you should see your doctor to rule out more serious causes such as cervical cancer.