Causes of Gynecomastia

Underlying condition causes of Gynecomastia: The list of possible underlying conditions (see also Misdiagnosis of underlying causes of Gynecomastia) mentioned in various sources as possible causes of Gynecomastia includes:

• Puberty - all adolescent males experience some male breast enlargment; it is often temporary.
• Aging - more common in older men as male hormones reduce.
• Obesity - may cause similar enlarged appearance.
• XXY males
• Liver disorders
• Liver disease
• Hypogonadism
• Certain tumors
  • Estrogen-producing tumors
  • Testicle tumor - if it secretes estrogen
  • Adrenal tumor - if it secretes estrogen
  • Ectopic hCG tumor
  • Hepatoma
  • Lung cancer
• Feminization
• Chronic kidney failure
• Hyperthyroidism
• Breast cancer - can occur in males.
• Lipoma
• Lymphamgioma
• Neurofibroma (type of Neuroma)
• Hematoma
• Dermoid cyst
• See also causes of breast swelling

Gynecomastia as a symptom: Conditions listing Gynecomastia as a symptom may also be potential underlying causes of Gynecomastia. The list of conditions listing Gynecomastia as a symptom in our database includes:

• Cirrhosis of the liver
• Feminisation
• Gynecomastia
• Klinefelter syndrome
• Progressive Spinobulbar muscular atrophy

Related information for causes of Gynecomastia: Further relevant information on causes of Gynecomastia may be found in the risk factors for Gynecomastia and underlying causes of Gynecomastia.
Last revision: May 28,2003

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