Gynecomastia is over development of the male breast. The glandular tissue of the breast swells, usually in response to an excess of the female hormone estrogen or a lack of testosterone, a male hormone. It occurs in babies, teen boys, and older men.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.