Lymph node puncture is widely used in clinical practice, mostly for diagnostic puncture, so the following aspects must be noted after lymph node puncture. Firstly, after lymph node puncture, local sterilization and gauze fixation must be performed to avoid local infection of the puncture site, resulting in local redness and swelling. Secondly, when the lymph node is punctured, there is a possibility of bleeding at the puncture site. In this case, it is best to apply local pressure bandages and compression to stop the bleeding, and in severe cases, you can apply some local coagulation drugs, such as thrombin and Yunnan Baiyao, locally. After lymph node puncture again, especially due to deep lymph node puncture, the patient may cause severe pain after surgery, then the patient can be given certain pain relief drugs, clinically used drugs such as tramadol tablets, pain relief tablets, etc., can relieve the pain caused after surgery.