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Gynecomastia

Swollen male breast tissue caused by a hormone imbalance.
  • Treatable by a medical professional
  • Usually self-diagnosable
  • Lab tests or imaging not required
  • Medium-term: resolves within months
Male breast tissue swells due to reduced male hormones (testosterone) or increased female hormones (estrogen). Causes include puberty, aging, medications, and health conditions that affect hormones.
Common: More than 200,000 US cases per year
Consult a doctor for medical advice Sources: Mayo Clinic and others. Learn more
People also ask
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