The enlargement of axillary lymph nodes found in breast cancer review may be combined with axillary lymph node metastasis or reactive hyperplasia of axillary lymph nodes. 1. Combined with axillary lymph node metastasis: because axillary lymph node metastasis is a very easy site of lymph node metastasis in breast cancer, if breast cancer metastasis occurs, it is necessary to surgically remove the mammary gland, and at the same time to carry out axillary lymph node sweeping surgery, when breast cancer patients have enlarged axillary lymph nodes in the rechecking, it is necessary to carry out relevant examinations in a timely manner to diagnose the nature of lymph nodes, so as to avoid further spreading of the cancer cells. 2. Axillary lymph node enlargement 2. Reactive hyperplasia of axillary lymph nodes: when breast cancer review test reveals enlarged axillary lymph nodes, it may be due to the influence of factors such as breast chemotherapy and surgery, which leads to reactive hyperplasia of axillary lymph nodes, thus manifesting enlarged axillary lymph nodes. If breast cancer review finds that the axillary lymph nodes are enlarged, it is recommended that the patient improve the relevant examination in time to clarify the cause of the disease, and choose the corresponding treatment under the advice of professional doctors, so as to avoid delaying the condition.