Hello, I have a history of early melanomas. I just noticed a small mole on my leg that has been there for a while but it has developed a bruise around the mole. The coloring of the mole hasn’t changed. Is this something to worry about? It is right on top of a vein. I have a dermatologist appointment in one month. I just noticed it yesterday. Is it ok to watch it for a while or is it a danger sign?