Gynecomastia is enlargement of the gland tissue of the male breast. During infancy, puberty, and in middle-aged to older men, gynecomastia can be common. Gynecomastia must be distinguished from pseudogynecomastia or lipomastia, which refers to the presence of fat deposits in the breast area of obese men. True gynecomastia results from growth of the glandular, or breast tissue, which is present in very small amounts in men. Gynecomastia is the most common reason for medical evaluation of the male breast.
When patients come in with a complaint of gynecomastia, they usually complain about lumps in their breasts with or without excess fat in the breasts. Surgery to remove the breast tissues usually involves liposuction of the excess fat, surgical removal of the excess glandular breast tissue through an incision in the margin of the nipple-areolar complex and/or skin excision (in very large male breasts).