3 days ago i noticed what i thought was a mole on my right index finger right next to my fingernail. Im going to see a dermatologist about it the 18th regardless of the responses but, i was wondering if it was a mole, or actually just a bruise because i have a HORRIBLE picking technique and i constantly keep hitting that exact part of my finger on the low E string, it hurts every time and im working on cleaning up my technique but i was wondering, Is this a common mistake or is it actually a mole that just happened to show up?
i dont think youre hitting your finger hard enough on the string to cause bruising especially if youve been playing a while

you shold get that checked out... asap...seriously
Yeah, that makes sense, however, does it make sense for a blister like that to be a reddish black color?