Axillary lymph node pain is usually caused by inflammation in the axillary lymph node drainage area such as local tissues or breast, and some malignant tumors or tuberculosis may also cause axillary lymph node pain. If the axillary lymph node pain is caused by inflammation, once it is treated with anti-inflammatory and anti-infection treatment with sensitive antibiotics, the lymph node pain will be reduced and disappear after the infection symptoms are controlled. If the lymph node pain is caused by malignant tumor metastasis, timely surgery or radiotherapy and chemotherapy treatment is needed.