The gums between two of my molars bleed and hurt every time I brush my teeth/floss. Also when I chew on that side, the spot hurts. It doesn't hurt when I bite down, so I'm assuming the pain is from food getting on the tender gum spot between those teeth. I recently went to the dentist, had xrays, cleaning, evaluation, etc. and nothing was found. I have never had a cavity and I had my wisdom teeth extracted when I was about 12. Since my visit to the dentist, my gums have been bleeding along the inner sides of my bottom teeth. Now this spot is bleeding and hurting. What could the cause be?