Examination found that axillary lymph nodes are enlarged or visible, whether it is serious or not needs to clarify the cause of lymph node enlargement, if it is considered to be caused by lymphatic metastasis of malignant tumor, then it is serious, if it is inflammatory enlargement or reactive hyperplasia, then it is usually not serious. 1. Malignant lymph node enlargement: it is mostly seen in lymph node metastasis of breast tumor, ultrasonography shows that axillary lymph nodes are enlarged or visible, with rich blood flow, unclear demarcation between dermatomal and medullary, unclear demarcation with surrounding tissues, and no local pain. Tumor lymph node metastasis is a serious situation. 2. Lymph node enlargement of non-malignant tumor metastasis: it is mostly seen in local lymphadenitis or benign reactive enlargement, ultrasonic examination of lymph node enlargement, but with normal blood flow and normal corticomedullary demarcation. Generally no special treatment is needed, regular review is enough, it can subside by itself and is not serious. Found that the axillary lymph nodes are enlarged or visible, should further clarify the cause of the disease, combined with the medical history and other examination judgment, under the guidance of the doctor to deal with the treatment.