The testicular sphincter cavity contains excessive fluid accumulation, which becomes testicular sphingomyelitis; the residual part of the peritoneal sphincter in the spermatic cord that is not completely occluded accumulates fluid. The spermatic cord syringomyelia is formed in children. Almost all pediatric syringomyelia have an unclosed sphincter duct that communicates with the abdominal cavity. The diameter of the syringomyelia is generally thin, about 0.2 cm, while some syringomyelia are thicker, up to 0.5 cm in diameter. if the syringomyelia is thicker, the fluid can become larger and smaller, or even disappear, which is often mistaken for self-healing. this is a traffic-related syringomyelia, and some can allow the omentum or even the intestine to enter, forming a hernia. Some syringomyelia are as thin as a hair and can only be identified by careful dissection. In female fetuses, the syringomyelia is called the NüCK duct, which descends along the round ligament, and the unclosed NüCK duct can also form a syringomyelia, also known as a NüCK duct cyst. Syringomyelia can be seen in all age groups of pediatric patients. Presentation: Cystic masses appear in the groin or on one or both sides of the scrotum. The size of the mass usually does not change significantly. If the caliber of the unclosed syringomyelia is thicker, the mass can be seen to shrink in the morning, and the mass is obvious because the scrotum droops when it is hot, and not obvious because the scrotum contracts when it is cold. Syringomyelia in girls is called Nuck’s cyst. Neonatal syringomyelia is quite common and may be due to continued occlusion of the syringomyelia after birth, which in some cases may gradually resolve on its own. According to the location of the abnormal closure of the syringomyelia, syringomyelia is basically divided into four types: 1, spermatic cord syringomyelia: the syringomyelia near the testis is occluded, while the syringomyelia of the spermatic cord is not closed, and the fluid in the abdominal cavity flows through the inner ring to inject the syringomyelia of the spermatic cord, also known as spermatic cord cyst. 2, testicular sphincter fluid: testicular sphincter cavity fluid, there can be fine sphincter and abdominal cavity, but sometimes the formation of live valve-like structure fluid can not be refluxed, resulting in high tension. 3.Spermatic cord and testicular sphincter effusion: the effusion is located in the testicular part of the spermatic cord, and there is a fine sphincter tube between the cavity and the abdominal cavity. 4.Traffic syringomyelia: The whole syringomyelia is not closed, and the fluid in the abdominal cavity flows through the syringomyelia. Because the syringomyelia is thicker, the fluid becomes smaller when lying down or squeezing, and sometimes it is difficult to distinguish from inguinal hernia. Treatment of syringomyelia: If the volume of syringomyelia is not large and the tension is not high, surgery may not be urgent, especially for infants within 1 year of age, as there is still a chance of self-remission. If the tension is high, it may affect the blood circulation of the testes and lead to testicular atrophy. This type of surgery is common and mature, so parents should be assured that post-operative care is easy. Tip: Avoid squeezing and bumping the scrotal area to prevent unnecessary damage such as internal bleeding, infection and adhesions caused by especially high tension effusion.