###Human: I am having severe pain in breast while breastfeeding. Please advice. ###Assistant: Hello. You have not mentioned the specific site where you get the pain. Is it in and around the nipple or is it deep inside? If the pain is in and around the nipple, then it is most likely due to faulty technique while feeding. These are the instructions for proper breastfeeding technique: Now considering that you are not doing any faulty technique or posture and still getting the pain deep inside: In any of the above reasons, you have to visit a gynecologist as soon as possible.