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  1. Gynecomastia - Wikipedia

    Gynecomastia is the abnormal non-cancerous enlargement of one or both breasts in men due to the growth of breast tissue as a result of a hormone imbalance between estrogen and …

  2. Gynecomastia: What It Is, Causes, Diagnosis & Treatment

    Jul 9, 2024 · Gynecomastia (enlarged male breast tissue) most often happens due to an imbalance of testosterone and estrogen. Certain medications and medical conditions can also …

  3. Enlarged breasts in men (gynecomastia) - Symptoms and causes

    Oct 26, 2023 · Gynecomastia (guy-nuh-koh-MAS-tee-uh) is an increase in the amount of breast gland tissue in boys or men. An imbalance of the hormones estrogen and testosterone causes …

  4. Gynecomastia - Johns Hopkins Medicine

    Gynecomastia is a condition of overdevelopment or enlargement of the breast tissue in children and adults who have a penis. The breasts become larger. They may grow unevenly. …

  5. What Is Gynecomastia? How Does It Affect Men and Boys? - WebMD

    Mar 14, 2024 · Gynecomastia is not necessarily a sign of cancer, but your doctor may run some tests to rule it out. Gynecomastia can range from mild to severe. Your doctor can "stage," or …

  6. Gynaecomastia - NHS

    Find out about gynaecomastia including what the symptoms are, when to get medical help, what causes it and how it's treated.

  7. Gynaecomastia: Causes, Symptoms, and Treatment | Doctor

    Mar 6, 2025 · Gynaecomastia is a benign proliferation of the glandular tissue of the breast in men. 1 It may occur at any time and there are a number of causes, some physiological and others …