Breast cancer should be diagnosed early and nursed back to health properly. For example, the current survival rate of stage I breast cancer 10 can be as high as 90%. At present, the main treatment methods of breast cancer are: surgical treatment: the main treatment method of breast cancer is surgical resection. Patients with early, middle and late breast cancer should undergo surgery as long as their physical condition can tolerate surgery. The purpose of surgical treatment is to control the primary tumor and regional lymph nodes to the maximum extent, reduce local recurrence and improve the survival rate of patients. The surgical method must be determined according to the location of the tumor, the age and requirements of the patient, the experience of the doctor and the results of pathological examination. At present, there is no recognized best surgical method. Chemotherapy: including preoperative, intraoperative and postoperative chemotherapy. Postoperative adjuvant chemotherapy is the most commonly used, aiming at eliminating the residual tiny cancer focus after operation, thus prolonging the recurrence-free survival period, reducing the mortality rate and improving the survival rate. The basic principle of postoperative chemotherapy is early, sufficient and effective combined chemotherapy. The common toxicity of chemotherapy drugs is gastrointestinal reaction and bone marrow suppression. Intense chemotherapy may inhibit immune function, especially T cell function, which may lead to increased susceptibility to certain infections, such as herpes zoster. Radiotherapy: In the past, radiotherapy was used as postoperative adjuvant or palliative treatment for advanced and recurrent cases. Since 1980s, the study of minor surgery plus radiotherapy for early breast cancer has been widely used in Europe and America, and it has become one of the main local treatment methods for early breast cancer, but it is rarely carried out in China.