There are different techniques to treat gynecomastia depending on the reason.
If the person needs gynecomastia surgery, due to mammary gland enlargement during puberty, growth tissue is removed from the breasts by a small incision made on the areola of the breasts.
If the person needs gynecomastia surgery, due to weight gain, it means there is excess fat on the breasts. The treatment technique is either the excess fat is removed by incision or by liposuction method without any incision.
If the person needs gynecomastia surgery because he has both excess breast tissue and excess fat tissue, both a surgical incision and liposuction method should be used in order to treat.
However, by the recent development of technology and by new devices, gynecomastia surgeries can be performed only by the liposuction method without any incision. For the best treatment and recovery process, the patient should consult his surgeon.