Breast cancer diagnosed as malignant has not spread, timely medical treatment with doctors. There is a certain chance of recovery. If breast cancer is diagnosed as malignant, it means that breast cancer is more serious. Breast cancer is categorized into stage 0, stage Ⅰ, stage Ⅱ, stage Ⅲ and stage Ⅳ according to the degree of malignancy, the higher the degree is, the more serious the condition is, and the lower the chance of recovery. The diagnosis of breast cancer is malignant without proliferation, indicating that the disease may be in the early stage. At present, the treatment of breast cancer is mainly based on the results of clinical staging and postoperative pathology immunohistochemistry, and comprehensive treatments such as surgery, radiotherapy, chemotherapy, targeted therapy, etc. are carried out to greatly reduce the spread or metastasis of the tumor. To greatly reduce the chance of tumor spread or metastasis, together with good nursing care, it may be possible to control the breast cancer well, so that the patients can get relatively long survival time and high quality of life. Patients whose breast cancer is diagnosed to be malignant without spreading need to be actively treated, and it is recommended to go to regular hospitals for consultation in time.