Nipple corrector aspirates watery discharge related to factors such as breast hyperplasia and nipple infection. Normally when nipple correction is performed, watery discharge is not aspirated, and the appearance of watery discharge is considered to be related to hormone levels. In particular, women suffering from breast hyperplasia, hormone levels change during the premenstrual period, resulting in the production of hyperplasia of the breast follicles, and hormonal stimulation also causes a small amount of secretion in the ducts of the breast. Therefore, when performing nipple correction, due to the attraction of negative pressure, the secretions from the breast ducts in the breast will be guided out and a small amount of fluid will be aspirated. In addition, patients with inverted nipples will have inflammation of the nipple area due to long-term inadequate cleaning. When nipple correction is performed, there will be pain in the nipple area. In a small number of patients, local soft tissue edema may occur, and in severe cases, there may be exudation of skin, so that watery secretions may be aspirated.