The common clinical causes of axillary pain on both sides of the patient are as follows: i. Patients with lung malignant tumors may cause axillary lymph node enlargement due to the invasion of tumor cells to the axilla, resulting in pain symptoms in the axilla. ii. Patients can improve chest CT examination to clarify the specific location of lung malignant tumor, and perform malignant tumor resection plus lymph node dissection as soon as possible. After the operation, chemotherapy, radiotherapy and other comprehensive treatment will be given, and patients with earlier condition can achieve better treatment effect. Secondly, if the patient falls accidentally during strenuous activities, it can cause soft tissue contusion in both sides of the armpit, thus causing obvious swelling and pain. It is recommended that patients rest in bed, both sides of the armpit using local ice packs to avoid progressive aggravation of swelling, at the same time can be applied externally to activate blood circulation and eliminate blood stasis cream, infrared irradiation physiotherapy, oral Sanqi tablets, bruise pills and other drugs. Improve the blood circulation of bilateral axillary injury, promote the local inflammatory factor faster absorption, reduce pain and swelling symptoms.