Cystic hyperplasia of breast is a common breast disease, which is characterized by the cyst formed by the high expansion of lobular duct and terminal duct of breast. Diseases with abnormal breast structure are also called chronic cystic mastopathy, cystic exfoliative breast hyperplasia fibrocystic mastopathy and so on. Compared with simple hyperplasia of mammary glands, this disease has hyperplasia of mammary glands and atypical hyperplasia, and there is a risk of malignant transformation, which should be regarded as precancerous lesions. It is common in middle-aged women and rare after menopause, but now many young unmarried women also suffer from this disease, sometimes with serious symptoms. The main reason is related to the disorder of female hormone metabolism in the body, especially the imbalance of estrogen and progesterone, which makes breast parenchyma hyperplasia excessive or incomplete. According to the gynecologist of Jiaxing Armed Police Force, cystic hyperplasia of mammary glands is called breast pain in the early stage of its onset, and its symptoms are dull pain, tingling, chest back pain and upper limb pain. Some patients will become bigger, harder and more painful when they are depressed, depressed, tired and in bad weather, and will become softer and smaller after menstrual cramps or mood improvement. Clinical experience shows that most of these changes are benign; If the mass grows rapidly and the texture is hard, it may indicate malignant transformation. How to treat cystic hyperplasia of breast? According to the gynecologist of Jiaxing Armed Police Hospital, the treatment of cystic hyperplasia of breast varies with the course of disease. Breast pain and breast fibroadenosis are treated with drugs first, and generally treated with drugs for several courses. If the effect is not good or the symptoms are serious, the canceration rate of breast cystic hyperplasia is higher than that of ordinary women, and 20% ~ 65% of breast cancer is complicated with breast cystic hyperplasia. At the same time of drug treatment, we must observe closely, and those who have the following situations should be more vigilant: (1) Breast pain over 40 years old has no menstrual cycle, and it is unilateral and nodular, so further biopsy should be done; (2) The age is between 30 and 40 years old, and the clinical symptoms are obvious and aggravated, and the drug treatment is ineffective. Pathological examination should be done after tumor resection; (3) People under the age of 30, especially those who are unmarried and childless, can be treated with drugs under close observation. If the treatment is ineffective, especially if the pain is not obvious, the mass should be removed and biopsied as soon as possible. If cancer cells are found, they should be treated as breast cancer.