Radiotherapy is recommended for breast cancer with large tumor diameter and more than 3 or more lymph node metastases in the axilla or with distant local metastases. Usually 25 sessions of radiotherapy are required, 5 times a week, at a total cost greater than 50,000 (yuan). If the patient has health insurance, reimbursement is available, but the percentage of reimbursement varies by type of health insurance. Chemotherapy may improve patient survival and reduce metastasis and recurrence rates. Whether patients need chemotherapy, radiotherapy, endocrine therapy and targeted therapy after surgery should be judged according to the pathological type of breast cancer, molecules, staging, combined with the presence or absence of distant metastasis and other multifaceted indicators.