Liver cysts may cause body edema, but the likelihood is not great. Liver cysts are relatively common benign lesions of the liver, in theory there is a possibility that with the gradual increase of liver cysts, may compress the surrounding tissues, appearing compression symptoms, such as portal hypertension, etc., the patient is mainly manifested as ascites, liver and spleen enlargement, etc., causing body edema. However, patients with liver cysts usually do not have any symptoms, if the cysts increase in size, more likely to appear epigastric discomfort and other symptoms, appear to lead to portal hypertension secondary to body edema rarely. Patients with liver cysts should pay attention to dietary hygiene, appropriate supplementation of high-quality protein, such as lean meat, eggs, etc., to ensure nutrition, avoid greasy, cold, irritating food, quit smoking and alcohol, and develop good living habits. Therefore, patients with liver cysts do not need to worry too much, they should follow the doctor’s instructions to standardize the treatment and regular review.