On the side of my left breast, about 2 inches from the areola, I have what looks like a 1/2 inch, donut shaped swelling with what appeared to be a blood blister in the middle of it. It's tender, somewhat itchy and the skin sheds from it every few days. Today in the shower, I kept the hot water on it for a while and the blood came right to the surface. I lifted the breast to see it and with very little pressure on it a burst of grey fluid came from it. It looked like blood mixed with pus. It's been there a couple of weeks and that has never happened upon inspection of it before. I have had a couple of things that looked and acted somewhat similar under my left armpit and now I'm starting to get concerned that it might be a form of melanoma or breast cancer. Any ideas? I'm going to my midwife on Monday to see if she has any ideas but thought I'd get another opinion out here and found this site. If it matters, I am still breastfeeding my 3-year old, and with his sister have been nursing a total of 5 1/2 years. Thank you. Nancy