This is a condition of the male breast that is too big. In most cases, it is because the breast tissue in the particular male patient responds too much to the very small amount of female hormones that men have. Why they do so is not known. There are a few men who have hormonal problems and sexual organ problems that can lead to gynecomastia. This is a problem that needs an endocrinologist to handle.
When a man has all other normal male features and no abnormal hormones the extra breast tissue can be removed through a “keyhole” incision on the lower edge of the areola. The resulting loose breast skin will tighten up after a few weeks and months. Seldom do men need the removal of the excess skin. There will be temporary numbness for a few weeks to months. Most patients are able to shower the day after surgery and can wear an elastic compressive strap over the chest for 4-6 weeks. Many patients go back to the gym in a week or two.