Do breast biopsies affect milk supply?
A breast biopsy removes a piece of the breast so that it can be examined for cancer or other diseases. Biopsies can be open, in which the skin is cut and a piece of tissue is removed through the opening, or they can be done with a needle that is pushed through the skin and into the abnormal area. Open biopsies may affect milk supply if the milk tissue is extensively damaged, a large piece of tissue is removed, or the area behind the nipple is disturbed. Needle biopsies are very unlikely to affect milk supply.