Post-operative changes of the liver is a common descriptive term used in abdominal ultrasound or abdominal CT examination, which means that the patient has undergone surgical resection of the liver because of liver cysts, liver cancer, etc. This situation does not mean that there is a problem, and it is enough to pay attention to the abdominal ultrasound or abdominal CT examination in normal times. After liver resection, patients need to pay attention to light diet, eat easy-to-digest food, eat more vitamin-rich and protein-rich food, quit smoking and drinking, avoid staying up all night, and have a low-fat and low-cholesterol diet, which is helpful for the recovery of patients’ condition. Patients usually have discomfort, timely to the hospital for examination, actively cooperate with the doctor treatment, do not be careless, so as not to delay treatment, miss the best time for treatment.