Liver cysts are usually larger than 5cm and combined with symptoms to consider surgical resection, if larger than 10cm without symptoms should also be considered resection, if the liver cysts caused by parasites, even if they are not more than 5cm, should also be considered resection. Most of the liver cysts are congenital benign lesions. If the cysts are not larger than 5cm and there are no uncomfortable symptoms, they should be rechecked once every six months for observation. 1. Liver cysts larger than 5cm need to be considered for surgical treatment if they compress important tissues such as the surrounding bile ducts and blood vessels, or if they are combined with complications such as infection or intracystic hemorrhage. 2. Liver cysts larger than 10cm are obvious space-occupying lesions, and even if there are no symptoms, serious problems such as rupture and bleeding may occur at any time, so surgery is needed. 3. Parasitic liver cysts require surgery even if they are not more than 5 cm. Most of the liver cysts are congenital benign lesions. If they are not larger than 5cm and do not have any discomfort, they are usually reviewed once every six months for observation.