Yes this has happened to me. I Just recently noticed what were tiny little cuts that bled very little and did not really hurt in that area. I have narrowed it down to being the position we had sex in and possibly the friction and size of my partner. Its really sensitive skin there so if it continues for me I will speak to my doctor. Also you might try using a little neosporin to protect the skin from breaking, its also an antibiotic cream that wont burn like hydrocort cream would. Good Luck!
try out different positions. i get them too and sometimes it helps. try lying on your stomach, w/your legs closed, and have your sex partner penetrate from the back. stick to positions that keep from penetrating too deep cause i think that's what happens to me. also i read about some perineum massage that may help, i'll keep you posted!
I have had something like that happen to me but not for 4yrs straight I think it's happened like three times on three seperate occasions where a slight slit like cut opened up on the side of the lips on the outside towards the bottom and it was very irritating feeling, when wet or went to pee it burned a little because it was like an open wound but it went away fast, it's sensitive tissue that at times the area might be very sensitive and it cracks open especially during sex because of the friction.....but having it for sooo long like you say I think you should check with another doctor.
Good greif! I wish I could. I would go see another doctor.