The nipple is always the “focal point” of a woman’s care, and the normal nipple is cylindrical and extends about 1.5-2 cm from the breast plane in a nodular shape. If the nipple of an adult woman is sunken under the skin surface of the areola and does not protrude from the plane of the areola, resulting in a small or large localized mouth, it is called nipple invagination. Nipple indentation is a common condition in women. The most common causes of nipple indentation are overly tight clothing, especially women’s underwear during breast development; improper use of bras; bras that are too small, too tight, and used too early. In addition, nipple indentation is also related to heredity. Clinical observation shows that mothers and their mothers’ generation and grandmothers with a history of nipple indentation have a higher possibility of developing nipple indentation in the next generation than normal people. The incidence of nipple invagination in women is 1-2%. The degree of nipple invagination may not be the same on both sides, but may occur on only one side. The degree of nipple indentation varies. Type I: the nipple is partially sunken, the nipple neck exists and the sunken nipple can be easily squeezed out; Type II: the nipple is completely sunken in the areola, the nipple can be squeezed out, the nipple is smaller than normal and most of the time there is no nipple neck; Type III: the nipple is completely buried under the areola and the sunken nipple cannot be squeezed out. Although nipple indentation is not a major disease, it can affect the couple’s emotional communication and life, and does not facilitate breastfeeding after childbirth, and can easily lead to local inflammation, eczema, and in severe cases can cause ductal dilatation of the breast. Therefore, nipple indentation should be corrected in time during adolescence. Inverted nipples are mainly treated surgically. Primary nipple invagination (congenital) can be treated conservatively first. For example, negative pressure suction of the nipple with a breast suction device or manual traction. In severe cases and in cases where suction and traction are not effective, surgery should be performed. Secondary nipple invagination is often caused by breast cancer and should be clearly diagnosed first. Inflammation, trauma and surgical scar should be treated with the appropriate etiology, and later plastic surgery should be performed. Manual traction: Squeeze the nipple out of the skin surface by yourself, pinch the nipple horizontally or vertically with your thumb and index finger, and pull the nipple outward continuously or intermittently for about thirty minutes each time, alternating with bilateral nipples. 3-5 times daily. Apparatus traction: that is, sucking out the nipple by means of a manual or electric breast pump, using the principle of negative pressure, again continuously or intermittently sucking and pulling the nipple for thirty minutes each time, alternating between the two sides, 3-5 times a day. The above two correction methods can be received with better results after two months. Irreducible nipple invagination, that is, severe nipple invagination, can only be corrected by surgery. The surgery is performed within the areola, which is small and does not leave obvious surgical scars, and under normal circumstances, the sensory nerves of the nipple are not damaged, so the normal sensation of the nipple is not hindered after surgery. The surgery usually does not destroy the breast ducts, so it will not cause breastfeeding disorders either. After the nipple invagination surgery, there is still a possibility of recurrence, so after the surgery for 5-7 days and the removal of stitches, it is necessary to traction the nipple for 1-2 months, and if possible, it is also feasible to traction the nipple with instruments to consolidate the effect and prevent the recurrence of nipple invagination. Minimally invasive surgery is now commonly used in our department to treat nipple invagination. This method does not require any incision in the skin, does not destroy the ducts of the breast, pulls the nipple out through traction, fixes it on an external corrector, and retains it for 3-6 months to restore normal appearance and lactation function. This method is suitable for mild, moderate and some severe nipple indentations with breastfeeding requirements and has good treatment results. How should I care after nipple indentation plastic surgery? 1, after the operation on time oral antibiotics to prevent infection and protect the nipple. 2, there will be a simple dressing on the wound after the surgery, go to the doctor on time for a change of treatment. And according to the doctor’s request, come to the hospital on time to adjust the tightness of the wire on the braces. Clean the operation area daily and keep it clean and dry at all times. You can buy small tweezers, small scissors, sterilized cotton swabs, 75% alcohol and other items to clean and disinfect the operation area. 3, after surgery should be in accordance with the doctor’s instructions to wear fitted soft and loose clothing, purchase sterile gauze, daily cleaning of the orthodontic area after the orthodontic device, placed in the orthodontic device and skin liner to prevent skin pressure, breakage. 4, orthotics placed, can not be removed without permission or adjust the elasticity, after surgery, such as abnormalities, timely contact with the doctor, to the hospital to make the appropriate treatment.