Fatty cysts are very common benign lesions in clinical practice, and the treatment varies according to the size and location of the fatty cysts.1. For deeper fatty cysts in the abdominal cavity, if the patient does not have obvious abdominal pain, nausea, vomiting and other symptoms. At the same time the volume of the cyst is small, dynamic CT and color ultrasound review can be taken first to closely observe the changes of the cyst. If the volume of intra-abdominal cyst increases and symptoms of intestinal tube or organ compression appear, causing intestinal obstruction or tissue ischemia and hypoxia, in this case, patients are recommended to perform laparoscopic surgery or open surgery to remove the lesion. 2. For small fatty cysts on the body surface, close observation is usually adopted, and if, during the process of observation, the cyst volume increases and compresses joints or blood vessels, patients are also recommended to perform If the cyst increases in size and presses on the joint or blood vessels during observation, patients are also recommended to undergo surgery.