Gynecomastia is an abnormal growth of breast tissue in males. It frequently begins during puberty and often resolves spontaneously. Weight gain and certain medications contribute to the deformity. The use of marijuana has been linked to gynecomastia. If the excessive breast tissue persist beyond the initial adolescent growth spurt, surgery to remove the gland is advisable. This often has dramatic psychological impact on the patient, as significant embarrassment is often associated with the deformity.

Insurance may cover portions of the surgery since it is considered reconstructive. The breast can be reduced by liposuction alone or may require direct excision of the gland (subcutaneous mastectomy) and skin tightening if there is significant skin laxity.