The main symptoms of male breast enlargement are as follows: 1. The simplest judgment is the gradual enlargement of the breasts and the obvious feeling of breast augmentation when wearing clothes; 2. Then there is limited nodular thickening when palpated, or diffuse thickening around the areola; 3. There is pain and discomfort in the thickened area of the breast; 4. At the same time, some patients may even have a small amount of white discharge and nipple overflow when squeezing the nipples. The patient may even experience a small amount of white discharge and nipple overflow when squeezing the nipple. Generally, if men find themselves with the above symptoms, i.e., gradual breast enlargement, glandular enlargement, pain, discomfort, or nipple overflow, it is recommended that they go to the hospital promptly to investigate whether there is a pituitary tumor or other factors causing gynecomastia.