Breast cancer is one of the common malignant tumors in women, and patients with right breast invasive breast cancer do not necessarily need chemotherapy. If the cancer patient is in early stage, if it can be detected, diagnosed and treated early, and the tumor has not spread and metastasized, it can be cured through radical surgical resection, and the patient with early invasive breast cancer does not need chemotherapy after surgery. null Patients with middle and late stage invasive breast cancer whose tumors have spread and metastasized need to be treated with chemotherapy, radiotherapy, and targeted drug therapy after surgery, to control the condition and prevent the recurrence of the tumor, and endocrine therapy and so on, Endocrine therapy and so on, to control the condition and prevent the recurrence of tumor. Through active treatment, the five-year survival rate of patients with middle and late-stage invasive breast cancer is about 60%.