I have had a blood blister on my stomache since march. It looks black with blue in it and red around it. I have cut it off four times to get it to go away, but it keeps coming back. It bleeds when i cut it and comes back within a week everytime. Kinda looks like a horseshoe area after i cut it off. It gets larger everytime it comes back. It started out pin sized now it is almost the size of the very tip of my pinky. i seen a doctor for somethin else and just had him look at it. He glanced at it and said it was just a blood blister and should go away in a couple days. Its been 5 mos. Still there and still coming back. Pleadse help