Postoperative benign retroperitoneal tumors should be controlled from several aspects, such as good monitoring, wound care, daily care and treatment, and postoperative review. 1. Good monitoring: at the early stage of treatment, we should pay attention to the patient’s indicators, including blood pressure, respiration, pulse rate, heart rate, etc. For critically ill patients, we need to carry out electrocardiogram monitoring to closely observe the vital signs. 2. Wound care: in order to avoid wound infection and exudation, it is necessary to change the wound dressing regularly and check the drainage tube of post-abdominal drainage. 3. Daily care and treatment: according to the patient’s intestinal function recovery, give fluids and semi-fluids, which can relieve the burden on the stomach and intestines, alleviate bloating, and promote the improvement of the condition; after the operation, it is necessary to be treated intravenously with antibiotics such as cefuroxime, levofloxacin and other anti-infective treatments, and for the slow recovery of the gastrointestinal function and the nutritional status of the poor, it can be given to the intravenous nutritional therapy. 4. Postoperative review: regular examination, especially some tumor-related factors and some CT or ultrasound of abdomen, should be carried out to observe whether there is any early metastasis and recurrence, and appropriate auxiliary treatment should be given. This can improve the survival time and survival period of patients with retroperitoneal tumor. After benign retroperitoneal tumor surgery, it is necessary to have regular review and standardized treatment under doctor’s guidance. Normally, you should eat liquid food, semi-liquid food, and move your lower limbs more when you are in bed.