Hello, So this has been happening to me on and off for about 3 years and I have been to a sexual clinic and asked about it but haven't had a conclusive answer. Basically, sometimes after I masturbate, this is only ever clitoral and is either with or without a vibrator, I have bled a little. Sometimes the blood (it is darker in colour and doesn't really look like period blood) will begin 10 or so minutes after orgasm, or several hours later. And sometimes there will still be some residual blood the next day but this is often a very small amount. The blood is not coming from the clit but from the vagina, and is dark and stringy (sorry!!).At my sexual health check up the doctor diagnosed me with BV grade zero (so basically I have no bacteria, good or bad, in me vagina), and I have been taking probiotics as advised, but haven't seen a change to suggest they are working. He didn't mention whether the BV might be the reason behind the bleeding.Just as a bit of background, I am on the combined oral contraceptive pill (Gedarel - though I have tried many of them over the years), and the bleeding from orgasm can come at any point in my cycle. Any thoughts on what might be causing the bleeding?