Sacral cysts (sacralcyst) originate from the spinal tegument and are benign neurosurgical disorders that are spinal cysts located in the sacral spinal canal, hence the frequent name sacral cysts. Most sacral cysts are congenital, while a small percentage develop as a result of adhesive arachnoiditis following trauma, infection, tumor, and other diseases, resulting in an acquired, confined cyst. The vast majority of patients have no specific discomfort and are mostly discovered incidentally during MRI of the lumbar spine. Very few patients may experience discomfort in the sacrococcygeal and perineal areas and discomfort in the buttocks, back of the thighs, outer calves and soles of the feet due to varying degrees of compression and irritation of the cauda equina or sciatic nerve. For the majority of asymptomatic patients, close observation and regular review can be done based on the exclusion of primary and secondary benign and malignant tumors, and sacral cysts cannot heal on their own, but sacral cysts generally develop very slowly.