I. Overview “Mammary gland hyperplasia” is essentially a disorder of the normal structure of the breast caused by physiological hyperplasia and incomplete regeneration, and is a benign disease, or sometimes it cannot be called a disease, but a physiological phenomenon. Its cause is related to the cyclical changes of estrogen in the body or metabolic disorders, especially the imbalance of the ratio of estrogen and progesterone. Due to the variety of pathological patterns, the names are not uniform. Western scholars mostly call it “fibrocystic mastopathy”, while in China cystic changes are rare and glandular hyperplasia is the main cause, so it is mostly called “mastoproliferative disease”. The World Health Organization collectively refers to it as “benign breast dysplasia”. Mammary gland hyperplasia is a common and frequent disease in women, commonly found in women aged 25-45 years old, and is a benign hyperplasia of the breast parenchyma with complex pathology. Clinical manifestations The prominent manifestation of the patient is breast swelling and pain before menstruation, which is alleviated or disappears after menstruation, and when palpation, bilateral (individual unilateral) breast lumps or nodules of different sizes can be palpated, which are granular or lamellar, tough and not hard, and not clearly demarcated from the surrounding breast tissue. A small number of patients may have nipple overflow. There is no direct relationship between “breast hyperplasia” and breast cancer. It has been controversial whether breast hyperplasia can become malignant or not. The term “mastopexy” refers to mild to moderate breast enlargement, not atypical enlargement, that is, it is generally believed that “mastopexy” is not directly related to breast cancer. Patients who are diagnosed with breast enlargement should not be overly nervous, should not blindly seek medical help, should not abuse drugs, and should not abuse fancy treatments that not only waste money but also harm their bodies. For women younger than 40 years old, they should check their breasts once a year; for women older than 40 years old, they should check their breasts once every six months; if there are nodules or lumps in their breasts, they should check them once every 2-3 months. The best time to check is around the tenth day of the menstrual cycle. In addition to physical examination by a doctor, for Chinese women, the first choice of examination for breast enlargement is ultrasonography, followed by mammography. However, mammography is not recommended for young women, especially for women under 35 years old who have no clear risk factors for breast cancer or no abnormalities on clinical examination. When the pain of breast enlargement is mild and does not affect work and life, and there are only scattered small granular nodules in the breast, no special treatment is needed, and a bra can be used to hold up the breast to relieve breast distension and pain. Avoid overexertion, less “anxiety and fire”, and keep a comfortable mood than any medication is effective. 2.Chinese medicine treatment If the symptoms are heavy, Chinese medicine can be used to regulate the liver, regulate the qi, and regulate the function of the ovaries, such as oral Chinese medicine, such as prolotherapy and breast paralysis. 3.Surgical treatment of mammary gland hyperplasia itself does not require surgical treatment. If the lesion is suspected to be malignant, the suspected nodule or lump should be surgically removed or punctured, and pathological examination should be performed to confirm the diagnosis, except for breast cancer.