Gynecomastia is a condition in males that causes enlargement of breast tissue due to hormonal imbalance, obesity, medications, or other health factors. It can affect one or both sides of the chest and may cause swelling, tenderness, or a firm lump under the nipple.

Common symptoms include enlarged breast tissue, chest discomfort, and uneven chest appearance. Although usually harmless, it can affect confidence and body image, so medical evaluation is recommended for proper diagnosis. The exact cause of lipoma is not always known, but factors such as genetics, obesity, and tissue growth abnormalities may increase the risk. Early medical evaluation is important to confirm the condition and rule out other skin or soft tissue problems.