Liver cyst is a relatively common benign liver disease, it can be divided into parasitic and non-parasitic liver cysts, the former is dominated by hepatic echinococcosis, the latter can be divided into congenital, traumatic, inflammatory and neoplastic liver cysts, among which congenital liver cysts are the most common, usually referred to as congenital liver cysts. 1.Symptoms and diagnosis Liver cysts are usually asymptomatic. When the cyst grows to a certain extent, it may compress the gastrointestinal tract and cause symptoms, such as epigastric discomfort and fullness; there are also abdominal pain and fever due to secondary bacterial infection of the cyst. With the development and popularity of diagnostic imaging, especially ultrasound has been listed as one of the routine physical examinations of the population, and the detection rate of ultrasound for liver cysts can reach 98%, so a lot of this disease is found. In people’s mind, a cyst is a tumor growing on top of the liver, even though there are not much symptoms, it is also very uneasy, will it turn into liver cancer? The common complications of liver cysts are rupture and bleeding, bacterial infection, fistula and penetration, while cancer is rare. Congenital liver cysts are absolutely not cancerous. Liver cyst is a relatively common benign liver disease, which can be divided into parasitic and non-parasitic liver cysts, the former is dominated by hepatic echinococcosis, the latter can be divided into congenital, traumatic, inflammatory and neoplastic liver cysts, among which congenital liver cysts are the most common, usually referred to as congenital liver cysts. 2.Treatment Solitary giant cyst can be considered for puncture flow or resection. Multiple cysts can be considered partial hepatectomy; cyst rupture infection can be treated with antibiotics. Liver cysts, in layman’s terms, are “blisters” in the liver. The vast majority of liver cysts are congenital, that is, they are caused by some abnormality in congenital development. Acquired factors are rare, such as parasitic cysts in the liver in pastoral areas where people have contracted encapsulated cysticercosis. Trauma, inflammation, and even tumors can also cause liver cysts. Cysts can be single, just one, as small as 0.2 cm, or as many as ten or dozens, or even one as large as tens of centimeters. Patients with polycystic liver cysts are sometimes combined with cysts of other internal organs, such as concomitant renal cysts, pulmonary cysts and occasionally pancreatic cysts and splenic cysts. In polycystic liver, cysts may cover the liver, and some patients often have upper abdominal masses as the first symptom, with ascites, portal hypertension and other signs of liver insufficiency at the end stage.