The first day after left hepatic lobectomy is the most dangerous, and postoperative patients usually need to be observed in the intensive care unit for one day before being transferred back to the general ward. Left hepatic lobectomy is a relatively major surgical procedure in which part of the left lobe of the liver is removed along with the diseased area. As patients may experience bleeding in the operation area, liver function abnormalities and electrolyte disorders in the 24 hours after the operation. Therefore, patients should have regular blood and liver function tests, while the flow and color of the abdominal drainage tube should be observed for any changes within 24 hours. Patients after left hepatic lobectomy should go down to the ground early under the doctor’s advice to prevent complications such as deep vein thrombosis of the lower limbs. Patients need to contact the doctor for appropriate treatment in case of fever, persistent abdominal pain, nausea and vomiting after surgery.