The only correction of nipple invagination that may preserve the function of breastfeeding What is nipple invagination? A nipple that does not protrude but sinks inward is called nipple invagination. Nipple invagination is a common congenital disorder in young women that not only affects the aesthetics of the breasts, but also affects breastfeeding, and in severe cases of nipple invagination, recurrent nipple area infections and odor can occur. The reason for the formation of nipple invasion is that the degree of nipple invasion varies from person to person, and the lighter ones only show varying degrees of nipple flattening or retraction, which can protrude or squeeze out the nipple after stimulation. In severe cases, the nipple is completely trapped in the areola and cannot be pulled out, which is crater-like and often accompanied by discharge or odor. Inverted nipples, even when extruded, are generally smaller, often without a visible nipple neck, and are split. The incidence of nipple invagination in women is 1% to 2%, usually bilateral, or only on one side, and the degree of nipple invagination can be inconsistent. The degree of nipple invagination – nipple invagination can be divided into three degrees: 1, one degree for partial nipple depression, the nipple root is still there, after stimulation protruding, protruding nipple shape is normal. 2, the second degree is the nipple is completely sunken in the areola, but the nipple can be squeezed out by hand, the nipple is smaller than normal, there may be nipple splitting, the nipple tip is not flat, rough like the surface of a poplar berry. 3. Third degree is when the nipple is completely buried under the areola and it is impossible to make the invaginated nipple extrude, that is, the patient never sees her nipple. So far, there have been a variety of surgical methods for the correction of nipple invagination, most of which use incisional surgery, which will inevitably affect the function of breastfeeding due to the cutting and loosening of the dysplastic breast ducts; or the use of nipple invagination suction devices sold online, which will not have any therapeutic effect. We are the first in the international arena to use a minimally invasive surgical method to treat nipple invagination with little pain and the only possible way to preserve lactation function, obtaining good surgical results. Results of stenting method nipple invagination correction