For the past couple of year, pieces of my nipple (some are light and dark brown) keep drying up, fall off, and returning. Nipples look like they are scaling. I only get an uncomfortable pain when they are about to fall off and a burning feeling after they have fallen. I have seen a small amount of discharge once. I went and saw a general surgeon who sent to me to go get an ultrasound because he felt a lump. The surgeon said the ultrasound came back normal but couldn't explain to me why my nipples are doing this and now he would like to do a biopsy to confirm that I don't have cancer. Has anyone had this or do you have any advice before I have the biopsy.