Stinky white stuff inside the nipple is not necessarily normal, it may be normal secretion, but also consider the occurrence of nipple inflammation, milk scale, follicle clogging. 1. Normal secretion: If there is white stuff in the nipple area, but there is no itching or pain and other discomforts belong to the normal phenomenon, and white secretion is the accumulation of objects secreted by the human body, and there will be a strange odor when it is not cleaned for a long time. 2. Nipple inflammation: most of them are caused by secondary infection after the rupture of the nipple area, and the secondary infection will lead to pus or oozing from the wound area at the time of attack, and the liquid coming out of the wound will have a peculiar smell, which is not a normal phenomenon. 3. Milk scale: If smelly white particles appear on the nipple during breastfeeding, you usually need to consider the possibility of milk scale. After the nipple produces milk, the milk may accumulate on the nipple and form white particles. 4. Clogged follicles: Stinky white particles may appear on the nipple if it is due to poor production of sebaceous glands in the nipple, which is caused by folliculitis and clogged pores. The epithelial tissue of women’s mammary glands is relatively weak, so if you don’t do a good job of taking care of yourself on a daily basis, it can cause discomfort or breast diseases. If there is discharge from the nipple for a long time without relief, the patient needs to go to the hospital for ultrasound, molybdenum target and other examinations.