Sometimes referred to as “gyno”, gynecomastia is a condition in which the male breast tissue becomes noticeably enlarged. It can affect both breasts at the same time or one breast individually. In general, the range of swelling can widely vary. Gynecomastia is completely different than the increase of breast tissue associated with normal weight gain.
Gynecomastia is caused by underlying hormonal balances. Specifically, there is too much estrogen in the body, and not enough testosterone. Although males do need a certain amount of estrogen to maintain a healthy physique, once it exceeds a normal level, the male body can start to take on feminine characteristics. One of these feminizing traits is gyno.
Sometimes, hormonal changes during puberty can cause temporary bouts of gyno. Similarly, infants can be born with breasts due to their mother’s high estrogen levels (these cases of gyno are usually temporary). Men can also experience gyno as they reach middle age and experience a decline in testosterone production. Unfortunately, this kind of gynecomastia is not usually temporary, since the proper hormonal balance is not likely to return.
Other natural causes can include:
Many environmental factors outside of the body can result in gyno as well, such as: