I have a lot of freckles and moles on my body. I am 43 in good health and no signs of melanoma - I see the dermatologist annually. Last appointment was in April (3 months ago). Both of my parents have had melanoma though - both are fine now. This morning I woke up with a blood blister on an existing mole on my stomach. It is black and when I touched it, it bled. It has not been bothering me and I never noticed it - it definitely was not there the day before yesterday when I was in the bathtub. I made the mistake of looking on the internet and it mentioned that this kind of blood blister can be fatal melanoma so now I am really worried. Is this true? I am hoping maybe just my jeans were rubbing against my belly too much!