Why does this happen all the time?

Why when me and my boyfriend have sex, I always bleed afterwards?Why does this happen all the time?
see a doctor this is bad
How much do you bleed? Is he your first sexual partner? If its not a lot of blood and your "new" to sex you shouldn't really worry too much. If its enough blood to fill a small pad I'd see a doctor.
its not always bad, it used to happen to me. It happened to me because he was a little to rough, not noticably, but i was actually getting injured. Then again, it happened to my friend and she had an STD that caused a breakout and warts and everytime she had sex the rubbing made her bleed. go see a doctor.