1, mastocytosis is the most common benign lesion of the female breast, conservatively estimated to be present in more than 60% of lesbians to varying degrees. The basic structural changes are neoplastic hyperplasia of breast follicles and ductal epithelial cells, cystic dilation of milk ducts, and cystic changes of interstitial fibrous tissue, resulting in structural changes of the breast gland and the formation of multiple nodules of different morphology. 3. The cause of its occurrence is mostly thought by researchers to be related to the endocrine microbalance imbalance in lesbians, which is inconclusive. 4, often manifested as palpable disorders of glandular structure, multiple cystic and solid nodules, combined with painful symptoms. 5.Mastocytosis is divided into ordinary hyperplasia and atypical hyperplasia. Ordinary hyperplasia does not increase the risk of cancer. Atypical hyperplasia increases the chance of cancer from mild to moderate to severe. 6. It is a stereotype that cystic hyperplasia of the breast increases the risk of cancer, which is a wrong view. The standardized name of breast hyperplasia in foreign literature is mostly breast fibrocystic disease or cystic hyperplasia of the breast. 7. Atypical hyperplasia is determined by pathological examination. Physical and imaging examinations (ultrasound, mammography, MRI, etc.) and laboratory tests (tumor markers, estrogen, etc.) cannot distinguish between common hyperplasia and atypical hyperplasia. 8.The theory of breast cancer occurrence: normal – ordinary hyperplasia – atypical hyperplasia – carcinoma in situ – invasive carcinoma. It takes long decades to develop from normal condition to breast cancer, and only very few of them have this chance of evolution. 9. Therefore, the majority of breast hyperplasia stays in the normal hyperplasia stage and does not increase the risk of cancer. At present, the chance of hyperplasia becoming malignant is over-exaggerated by quacks and black doctors, with the aim of causing panic among those who visit them, over-medicating them and cheating them out of money. 10.Mastocytosis cannot be cured. At present, the methods we usually use in China, such as taking Chinese medicine, massage, physical therapy and drug injection, cannot eradicate mastocytosis and have no role in preventing the occurrence of breast cancer, so if there is no combined pain and other symptoms, treatment is not necessary and regular checkups are sufficient. Prevention of mastocytosis: (1) You should keep your mood relaxed and emotionally stable. (2) Live a regular life and get enough sleep. (3) You should control the intake of fatty foods, moderate intake of soy and dairy products, and eat more vegetables and fruits. (4) Do not blindly take health products containing sex hormones. (5) Avoid using too tight underwear, which affects the local blood circulation of the breast. (6) Advocate breastfeeding, breastfeeding can make the mammary glands fully developed and degenerate well after weaning, reducing the occurrence of mastopathy. (7) Timely treatment of gynecological disorders such as menstrual disorders and other endocrine diseases. (8) People with family history of breast cancer and other high-risk factors should pay attention to regular checkups.