When it comes to breast problems, they are usually thought to be exclusive to women. This is not true, men also have breast problems. While many women are racking their brains on how to enlarge their breasts, some men are worried about their growing breasts. Gynecomastia, refers to benign hyperplasia and development of male breast, manifested as abnormal enlargement of breasts, which obviously affects the appearance and psychological health of patients. Clinically, it is more common in young men, and the incidence rate is increasing year by year, and there are more and more young people coming to the clinic. Many boys in pubertal development of unilateral or bilateral areola area tissue thickening, or may be nodular, and even nipples can be squeezed out a small amount of milk and other symptoms, these are due to changes in hormone levels in the body during pubertal development, and most of them will naturally subside within 1-2 years; however, there are a small number of patients who have developed breasts in adulthood has not subsided, and maintain the appearance of the enlarged. Gynecomastia in the elderly is mostly caused by absolute or relative excess of estrogen in the body. Hepatitis, cirrhosis of the liver to estrogen metabolism ability to reduce the amount of estrogen in the body can make a relative increase in the amount of estrogen, causing breast development. Germ cell tumors (such as testicular tumors) or a particular type of lung malignancy may synthesize large amounts of estrogen, which can also lead to gynecomastia. Prolonged use of estrogenic medications can also cause breast development, while some other medications (e.g., long term use of isoniazid, mauve diabetic, etc.) may also bring about breast development as a side effect. Regarding the treatment of gynecomastia, physiological gynecomastia is mostly temporary and usually subsides gradually without treatment. For pathological gynecomastia, the following treatments can be used if the symptoms are obvious and if the appearance is affected: Treatment of the cause of the disease: such as testicular tumors, a particular lung cancer, hyperthyroidism, hepatitis, etc., the cause of the disease should be treated. For gynecomastia caused by exogenous estrogen or drugs, the drugs should be stopped. Pharmacological treatment: the application of triamcinolone, methyltestosterone, etc., generally can make some patients pain relief, lumps subside. Surgery: Surgery can be used for patients with obvious lump pain, ineffective medication, or enlarged breasts that significantly affect the appearance. Among the patients who have the need for surgery, men in their young adulthood are the most common. They not only require surgery to cure the disease itself and remove the abnormally developed tissues, but also have the requirement of correcting the appearance as well as concealing the scars, which puts high demands on the surgical plan. A variety of programs are used to treat the different conditions of the patient’s breast development, including etiologic treatment, medication, and surgical treatment with a curved parareolar incision or a double-ring incision. Especially, the characteristic double-ring method of surgery can not only remove the excess skin, but also remove enough glandular and fat tissues, so that the shape of the breast after surgery is flatter and more masculine; and the most crucial thing is that the incision is located at the edge of the areola after sewing, so that the scars are hidden after surgery, which is accepted by the patients happily. It has successfully helped many male patients to solve this embarrassing trouble. In conclusion, like women, breasts are also an important organ located on the surface of the body objectively exist in the male body, but also an important indicator of the man’s life and quality of life assessment, men’s breasts also need health care, but also need to pay attention to it. If you find abnormal enlargement of the breast, do not form a thought burden, do not feel embarrassed, can go to the doctor in time, as long as the active treatment, mental relaxation, the symptoms will soon be relieved or subside.