The most common site of breast cancer metastasis is the lymph nodes, especially the axillary lymph nodes and sometimes the supraclavicular lymph nodes. In the axilla of the ipsilateral breast, patients can feel a hard lump that is slightly less mobile and sometimes painful to the touch. In some patients, bead-like lymph nodes can also be palpated. Metastases can also occur in other organs of the body, such as the lungs, liver, and bones, etc. Therefore, it is necessary to go to the hospital as soon as possible after the discovery of the disease to complete relevant examinations and perform radical resection of the tumor. Depending on the situation, axillary lymph node dissection may be required, and later on, chemotherapy, targeted drug therapy, endocrine therapy, radiation therapy, etc., the disease may be cured. Even if the disease is severe, comprehensive treatment can prolong the patient’s life while improving the quality of survival. Do not stay up late during the treatment period and increase rest.