Well, without seeing, it's hard to tell what kind of mole it is. Because it has changed recently, I would see a dermatologist. I caught a malignant melanoma on my hip early and am one of the lucky ones. Since it's a recent change, chances are if it's anything dangerous, you can take care of it early. Early detection is the key. Most likely, it is a benign nevus (mole), but just to ease your mind, I would see a professional and have it checked out. Good luck!

Crystal

A lot of moles start out as red and turn to brown. Moles under the armpit are so annoying i've had 3 removed. I say go to the dermatologist and get it removed and have a biopsy done on it!

Just had a melanoma removed from my back. I couldn't see it, so I didn't know it was there. I was lucky, it was stage ia. At stage iii they start to worry about it spreading to the lymph nodes.

What concerns me about your description is the change in the mole. Go to a dermatologist.

The abcds of melanomas (signs)
a - assymetrical
b - irregular border
c - color, varied
d - diameter (bigger than a pencil eraser)