Gynecomastia, commonly known as ‘man boobs’ or ‘male chest enlargement’ or ‘moobs’, is an abnormal enlargement of the breasts in men due to a hormone imbalance. It can be caused by a number of factors including obesity, drugs and medical conditions. While it is not life-threatening, it can cause emotional distress and embarrassment for those affected. Fortunately, there are several treatment options available to help reduce the size of man boobs and improve self-confidence.