Sweating at night after liver tumor resection surgery may be caused by the patient’s weakness, hypoglycemia, fever more. It is recommended to go to the hospital for detailed examination, and after clarifying the specific causes of the disease, carry out targeted treatment under the guidance of the doctor. 1. Weakness: After liver tumor resection, the patient will be weak, at this time, if there is no nutritional enhancement, the phenomenon of night sweating may occur, in this case, the family members should pay more attention to the nutritional supplementation of the patient, so as to alleviate the symptoms of night sweating. 2. Hypoglycemia: liver tumor is easy to be complicated with some diseases, if the patient is complicated with hypoglycemia, it may cause the patient to have sympathetic system excitation, therefore, it may lead to the phenomenon of sweating at night after hepatic tumor resection surgery, in this case, glucose can be taken or injected orally to supplement the body’s sugar. 3. Fluid absorption: there is some fluid accumulation in the operation area after liver cancer surgery, when the fluid is absorbed, it may lead to fever and sweating in the body. 4. Infection: if there is infection in the operation area or other parts of the body (such as lungs), it can lead to fever and sweating. It is recommended that after liver tumor resection surgery with night sleep sweating, you need to inform your doctor in time to clarify the diagnosis and treatment plan, use drugs under the doctor’s guidance, and avoid self-medication.