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 it.

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 cause it.

Most occurrences of gynecomastia do not require diagnostic tests. [4][5] Gynecomastia may be caused by abnormal hormone changes, any condition that leads to an increase in the ratio of estrogens / …

Gynecomastia often happens when a preteen or teenage child is going through the hormonal changes of puberty. But it can also happen to newborn babies and to adults as they age.

Aug 21, 2024 · Gynecomastia is an enlargement of the glandular tissue of the male breast. Learn about its causes, symptoms, treatment, surgery, & self-care.

Sep 28, 2025 · Gynecomastia occurs when hormonal changes increase male breast tissue. It may go away on its own, especially in younger children and adolescents.

In adult males, gynecomastia is usually caused by another condition, such as liver or lung cancer, cirrhosis of the liver, overactive thyroid, or by hormone problems, such as cancer of the pituitary …

In general, gynecomastia results from a hormonal imbalance in the body. All normal humans have both male and female hormones to a certain extent. Gynecomastia occurs when male hormones …

Gynecomastia in an adult that is of recent onset and causes pain is more often caused by a hormonal abnormality (eg, tumor, hypogonadism) or medications.

Gynaecomastia is categorized into three main etiologies: physiological, pathological, and iatrogenic/external factors. Physiological gynaecomastia occurs during predictable life stages due to …