The S7 segment of the liver is the upper segment of the right posterior lobe of the liver. A cyst in the S7 segment of the liver is a cyst in the upper segment of the right posterior lobe of the liver. Hepatic cysts are common benign lesions of the liver, usually congenital cysts are the most common. Depending on the location and size of the lesion, the clinical manifestations vary. Smaller lesions are usually asymptomatic, while larger lesions can present with discomfort in the liver, dull pain in the liver, etc. In case of co-infection, fever and pain may also occur. If the lesion is small and there are no clinical symptoms, you can choose to review it regularly and observe the growth rate of the lesion. If the lesion is large and there is pressure and other uncomfortable symptoms, it is recommended to choose surgery.