Gynecomastia (enlarged breasts in men)

Gynecomastia is swelling of the breast tissue in boys or men, caused by an imbalance of the hormones estrogen and testosterone. Gynecomastia can affect one or both breasts, sometimes unevenly. Newborns, boys going through puberty and older men may develop gynecomastia as a result of normal changes in hormone levels, though other causes also exist.

Generally, gynecomastia isn't a serious problem, but it can be tough to cope with the condition. Men and boys with gynecomastia sometimes have pain in their breasts and may feel embarrassed.

Gynecomastia may go away on its own. If it persists, medication or surgery may help.

Symptoms Causes Risk factors Complications Prevention

Signs and symptoms of gynecomastia include:

  • Swollen breast gland tissue
  • Breast tenderness

When to see a doctor

See your doctor if you have:

  • Swelling
  • Pain
  • Tenderness
  • Nipple discharge in one or both breasts

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