Lymph nodes can return to normal after a lymph node puncture. Lymph node puncture is a procedure in which the lymph nodes are punctured and the lymphatic fluid is extracted from them to obtain local tissue for biopsy, which can lead to the diagnosis of lymphoma, lymph node tuberculosis, metastatic carcinoma, black fever, fungal disease, and other diseases. The procedure of lymph node aspiration creates an incision, the size of which varies depending on the procedure. The incision for lymph node biopsy will be larger, up to 2-3cm, but after lymph node puncture biopsy, the area will be sutured, and the suture will need to be changed regularly to promote the healing of the incision. It should be noted that diabetic patients with poor glycemic control may experience poor healing of the incision surface, etc. Therefore, blood glucose needs to be controlled at normal levels to promote incision recovery. Lymph node puncture can be used to diagnose the disease and produce a recoverable incision, which needs to be enhanced by diet and other nutrition to promote healing.