My sister confided in me recently that every time her and her partner have sex she bleeds a tiny bit. They have been together 4 years and have only slept with each other. This has been going on for a year or so, and is a tiny bit of pinkish blood each time. She doesnt want to see the dr, but I probably will be able to convince her to. I recently had a bad smear result so this has been worrying me a bit. Anyone know what it could be?