Breast enlargement or gynecomastia is a condition of over-developed breasts in men that can occur at any age. Excess localized fat, excess glandular tissue, sometimes excess breast skin, and may present on one breast or both breasts. If the excess tissue is isolated to fat, liposuction alone may be enough to achieve the desired results. However, the breast tissue, which is denser than fat, can be surgically removed in some cases. The incision location will vary but may include the areola, under the breast, or at the armpit.