Male mammary hyperplasia is called male mammary dysplasia. It usually occurs in adolescence and old age. Pathological manifestations were glandular duct hyperplasia and no acinar hyperplasia. Generally can be divided into primary type and secondary type. The primary patients are mostly adolescent boys and elderly men, which are mainly caused by the temporary increase of endogenous estrogen or the decrease of androgen. Secondary patients are common in liver diseases, testicular diseases, adrenal diseases, thyroid diseases, diabetes and urogenital or nervous system tumors. Those who take estrogen for a long time or take certain drugs for other diseases, such as; Reserpine, remifentanil, digitalis, chlorpromazine, etc. It can also cause breast development, which can generally subside after drug withdrawal.

In addition, hermaphroditic congenital testicular dysplasia can also lead to breast hypertrophy.

Western medicine has no feasible treatment for this disease, mainly using hormone antagonism therapy and surgical resection, but it is easy to leave scars on the skin and easy to relapse. At present, surgical treatment is generally not recommended unless the patient insists on excision because of excessive breast pain or even mental anxiety. In addition, due to complicated reasons, there are different treatments for male breast development. Adolescent patients with primary breast development tend to recover spontaneously within 6 months.

Life care: It is very important to adjust mood, keep happy, avoid anger and worry, and pay attention to the combination of work and rest during treatment. Usually, you should quit smoking, drinking and dieting, and you can't eat greasy and spicy products. Be more comfortable during illness, have confidence in the treatment of the disease, adhere to the necessary physical exercise and functional exercise, pay attention to the local cleaning of the breast, prevent nipple and skin damage, and prevent infection. At present, there are drug therapy and surgical treatment to regulate the levels of estrogen and androgen, which are generally carried out under local anesthesia. Generally, there are transverse incision of nipple and areola at the edge of areola and L-shaped incision of areola and lateral breast to remove breast tissue and part of skin. Postoperative drainage and pressure dressing, taking antibiotics for 7 days to prevent infection.