Abdominal cysts are common clinical conditions characterized by abdominal masses with or without abdominal pain. It may be a lesion formed during embryonic development, or it may be a lesion caused by infection or other diseases and wrapped in the abdominal cavity, which are called primary and secondary abdominal cysts respectively. 1. Primary abdominal cysts: also known as true cysts, with real cystic walls, such as liver cysts, renal cysts, intestinal cysts, teratoma cysts and so on. Some of them can be asymptomatic for life and do not need treatment; some of them need surgery when they increase in size and compress the surrounding organs; polycystic liver and polycystic kidney may need liver and kidney transplantation in the late stage of hereditary disease. 2. Secondary cysts: also known as pseudocysts, there is no real cyst wall, mostly due to abdominal infectious diseases and other diseases caused by tissue wrapped into. Commonly, there are pancreatic pseudocysts caused by acute necrotizing pancreatitis, appendiceal mucus cysts caused by acute suppurative appendicitis, tubal cysts and so on. Treatment is mainly surgical. Imaging examinations such as ultrasound or CT scan can easily detect abdominal cysts, but cannot diagnose the nature of the cysts, and further puncture or interventional examination is needed in time to clarify the benign or malignant nature of the cysts, and to guide the adoption of reasonable treatment. If you find abdominal cysts, please consult the hospital in time and choose the appropriate treatment under the guidance of the doctor.