Sacroiliac joint cysts, if the cyst is relatively large and clinically significant, need to consider surgical removal. Joint cysts are cystic swellings that occur within the tendon sheaths of joint sites, and are a condition caused by degeneration of the connective tissue in the joint capsule, ligaments, and tendon sheaths. The common cause is overstrain, but it can also be related to trauma and inflammation. The treatment of sacroiliac joint cysts is divided into conservative treatment and surgical treatment. If the cyst is very small, without obvious symptoms, or after rest, hot compresses, oral anti-inflammatory drugs subside on their own or alleviate the symptoms, surgery can be avoided, and follow-up observation is preferred to check the changes of the cyst. If the cyst is obviously enlarged, with recurring pain, limited joint movement, or even compression of the cauda equina nerve, and abnormal sensation of bowel movement or perineal area, surgical treatment should be considered, and cyst curettage is commonly performed. Sacroiliac joint cysts, it is recommended that patients consult a professional physician to determine the diagnosis and treatment plan, so as not to delay the condition.