The majority of grade 3 breast nodules are benign, and the possibility of malignancy is less than 2%. There is no exact data on how long it takes to go from grade 3 to cancer, which can vary from several years to several decades, and there are large individual differences. Patients with grade 3 breast nodules can be treated conservatively if they have no obvious symptoms, and they can take oral Chinese medicine to eliminate stasis and disperse nodules under the guidance of doctors. It is recommended to review the nodules once every 3-6 months. If the nodules are progressively enlarged and accompanied by pain and discomfort, the patient should go to the breast surgery department or general surgery department for fine needle aspiration biopsy and surgical excision if necessary. In addition, breast nodules may also be related to genetics, diet, endocrine and other factors, so patients should work and rest regularly, avoid staying up late, combine work and rest; try to avoid spicy, greasy food; relax, reduce stress, regular review.