Breast cancer is considered to be more serious as long as there is axillary lymphatic metastasis. Breast cancer is a kind of malignant tumor, the pathogenesis is not clear yet, but it has some relationship with heredity, obesity, external irradiation, etc. In the clinic, it mostly manifests as nipple or areola abnormality, nipple overflow, breast lump, etc. Breast cancer is mostly treated by comprehensive treatment mainly with surgery. If breast cancer has axillary lymphatic metastasis, it means that the cancer has spread to the axillary area. In the early stage, patients usually do not have axillary lymph node metastasis, so it is recommended to follow the doctor’s advice to choose axillary lymph node dissection for treatment, and after the surgery, chemotherapy and radiotherapy can be used to assist and reduce the risk of metastasis and recurrence. It is recommended that patients maintain a good attitude during treatment and actively cooperate with doctors.