Patients with spinal cord embolism syndrome, especially children, should be alerted to one of the clinical manifestations of the disease: hairy, abnormally pigmented skin in the lumbosacral region. Tethered cord syndrome (TCS) is a syndrome in which the spinal cord or cones are strained due to a variety of congenital and acquired causes, resulting in a series of neurologic dysfunctions and malformations. Because the spinal cord is mostly pulled in the lumbosacral cord, causing the cones to be abnormally low, so it is also called low spinal cord. 1.All kinds of congenital abnormalities of spinal development, such as spinal bulge, spina bifida, spinal cord bulge, etc., caused by atresia of the end of the neural tube. Most of the cases were repaired within a few days after birth, and the purpose was to repair the abnormal nerve tissue to the normal state as far as possible, and the important thing was to prevent the cerebrospinal fluid leakage, but the adhesion caused by the healing process of the spinal dura mater tube reconstruction caused the embolism of the spinal cord end. 2.Spinal cord lipoma and intradural and extradural lipoma are caused by premature separation of the neural ectoderm from the epidermal ectoderm, where the fat cells of the mesoderm enter into the neural ectoderm that has not yet been atretic. The adipose tissue can enter into the central part of the spinal cord, or it can be attached to the subcutaneous adipose tissue through the detached vertebral arches, fixing the spinal cord cones. And cases after early childhood are associated with embolism caused by inflammation of the fat present in the subarachnoid space, resulting in fibrosis and adhesion scarring around the nerve roots. 3.Submerged hairy sinus is the failure of the neural ectoderm and epidermal ectoderm to differentiate well, and the local formation of cord-like tissue from the skin through the subcutaneous, spinal cord, resulting in embolism to the spinal cord cones. It can also be produced by the expansion and proliferation of the tissues in the wall of the latent hair sinus and produce dermatoid cysts and epidermoid cysts and teratomas, which can encircle or pull the spinal cord nerves and lead to embolism. 4.Spinal cord longitudinal fissure The mechanism of spinal cord longitudinal fissure is thought to be caused by factors other than the nerves, i.e., abnormal development of the vertebrae; it is also thought to be caused by abnormalities of the nerves, and the subsequent abnormal development of the vertebrae. The spinal cord is separated from the right to the left, and there are two types of split and undivided dural tubes. Also known as Type I: double dural sac double spinal cord type, that is, the spinal cord in the longitudinal fissure, by the fiber, cartilage or bone crest completely separated, divided into two, each has its dura mater and arachnoid membrane, the spinal cord by the separation of the pull, causing symptoms. Type II: common spinal capsule double spinal cord type, the spinal cord in the longitudinal fissure, more than by the fibers apart, for two, but there is a common dura mater and arachnoid membrane, generally no clinical symptoms. 5, end-filament tension is due to the immature spinal cord end part of the degenerative process of end-filament formation obstacles, and make the end-filament is thicker than normal end-filament, the residual part of the cause of spinal cord embolism. Neurogenic intestinal cyst The so-called neurogenic intestinal cyst is a condition in which the mesenteric rim of the intestinal tube forms a traffic with the tissue in front of the spinal column due to the unclosure of the spinal conduit. According to the degree of spinal cord catheterization and communication, there can be accompanied by bone defects in front of the spine, known as spinal fistula and spinal canal inside and outside of the intestinal cysts and other forms of manifestation. 7, lumbosacral spinal bulging postoperative adhesions and other complications Some scholars statistics such as these can account for 10% to 20% of all surgical cases.