There are different treatments for different types of breast enlargement. The main common types are benign breast enlargement, breast malignant tumor, gynecomastia, and breast enlargement caused by precocious puberty in children. Treatment includes medication and surgery. 1. Benign breast enlargement. For large breasts with sagging breasts, loose skin can be surgically removed, and for overgrowth of breasts, the overgrowth of breast tissue can be removed. For mild to moderate pubertal breast enlargement, the integrity of the ducts should be preserved as much as possible. 2. Malignant tumors of the breast. For example, breast cancer is commonly treated by surgery such as radical mastectomy, and estrogen can be used for estrogen receptor-positive cases, such as tamoxifen. trastuzumab can be used for HER2 overexpression. 3. Gynecomastia. In springtime males with enlarged breasts, the excess breast tissue can be removed if it does not subside after observation in adulthood. For liver disease, hyperthyroidism and other causes, to actively treat the original disease. For breast enlargement caused by hypogonadism, drugs such as triamcinolone acetonide can be used, and surgery can be chosen if the pain is obvious or the shadow affects the appearance. 4. Breast enlargement caused by precocious puberty in children. Such as congenital adrenocortical hyperplasia can be treated with adrenocorticotropic hormone. So that the mammary gland problems, we should promptly seek medical treatment, drugs should be applied under the guidance of a doctor.