Hello. I have a mole on my back, about the size of a pencil eraser, that appeared late in pregnancy, 2 1/2 years ago. I first noticed a very dark colored, fluid filled nodule. I squeezed it, and blood came out. It then filled with fluid. I periodically put pressure on it, and fluid comes out. It is now starting to turn a bit darker. I plan to call my MD in the morning, but could you give me some insight?