Nipple invagination is a congenital disorder that is manifested by the nipple being sunken below the areola level and can be classified into different degrees depending on the clinical presentation. In mild cases, the nipple can be pulled by hand for a period of time; in moderate cases, the nipple can be pulled out by hand and retracted immediately after releasing the hand; in severe cases, the nipple cannot be pulled by hand. In severe cases, the nipple cannot be retracted by hand. In mild and moderate cases, the appearance can be improved by loosening the surrounding tissues without cutting the milk ducts, and the milk ducts can be kept intact without affecting breastfeeding. In severe nipple invagination, the milk ducts must be severed before the nipple areola can be stretched out, and you must wait until after breastfeeding to undergo surgery. The risks of nipple invagination correction include nipple infection, hematoma, necrosis, recurrence of nipple invagination, impaired nipple sensation, and damage to the ducts of the breast. In order to avoid the above complications should do the following: 1, surgery should pay attention to protect the breast ducts of unmarried infertile women, otherwise it may its damage; 2, the inflammatory period prohibit surgery, otherwise there can be local redness, swelling, heat and pain and other inflammatory manifestations, when the surgery should be suspended; 3, the surgery to pay attention to the anatomical level, pay attention to non-invasive aseptic operation; 4, the postoperative local swelling, bruising, pain, hematoma, etc., to promptly To avoid blood flow obstruction due to swelling of the nipple areola, causing nipple necrosis; 5, there is a certain risk of recurrence of nipple invagination correction, try to avoid wearing a bra within one month after surgery to prevent nipple pressure, resulting in recurrence of nipple invagination.