<unk>  (also spelled<unk>  is the abnormal non-cancerous enlargement of one or both breasts in males due to the growth of breast tissue as a result of a hormone imbalance between estrogen and androgen.<unk>  can cause significant psychological distress or unease.<unk>  can be normal in newborn babies due to exposure to estrogen from the mother, in adolescents going through puberty, in older and/or obese men. Most occurrences of<unk>  do not require diagnostic tests.<unk>  may be caused by abnormal hormone changes, any condition that leads to an increase in the ratio of estrogens/androgens such as liver disease, kidney failure, thyroid disease and some non-breast tumours. Alcohol and some drugs can also cause breast enlargement. Other causes may include Klinefelter syndrome, metabolic dysfunction, or a natural decline in testosterone production. This may occur even if the levels of estrogens and androgens are both appropriate, but the ratio is altered.<unk>  is the most common benign disorder of the male breast tissue and affects 35% of men, being most prevalent between the ages of 50 and 69. It is normal for up to 70% of adolescent boys to develop<unk> . Of these, 75% resolve within two years of onset without treatment. If the condition does not resolve within 2 years, or if it causes embarrassment, pain or tenderness, treatment is warranted. Medical treatment of<unk>  that has persisted beyond two years is often ineffective.<unk>  is different from "pseudogynecomastia", which is commonly present in men with obesity. Medications such as aromatase inhibitors have been found to be effective and even in rare cases of<unk>  from disorders such as aromatase excess syndrome or Peutz–Jeghers syndrome, but surgical removal of the excess tissue can be needed to correct the condition. In 2019, 24,123 male patients underwent the procedure in the United States, accounting for a 19% increase since 2000.
Gynecomastia
Breast atrophy
Pattern hair loss
Post-vacation blues
Adipomastia
Trichomegaly
Breast hypertrophy
Clitoromegaly