The causes of cysts on patients are mainly congenital individual differences, local inflammatory irritation, and other factors, as follows: i. Congenital individual differences: the recurrence of cysts, such as liver cysts and kidney cysts, is caused by excessive proliferation of cystic epithelial cells in the embryonic period of patients. Second, local inflammatory stimulation: if the skin is accompanied by sebaceous cyst hyperplasia, it is often caused by chronic inflammation or injury of the local skin, and if necessary, it is necessary to perform surgery to remove the local sebaceous cyst to avoid cyst infection affecting the normal life of the patient. Third, other factors: some patients cysts are caused by the trauma after surgery, such as liver resection may cause cystic effusion in the trauma, if necessary, you can aspirate the local cystic fluid through puncture and drainage, so as not to cause local infection, or even bleeding serious complications, and try to make the patient’s condition more stable.