The comparison between testicular syringomyelia and spermatic cord syringomyelia: 1. The site of occurrence is different. Testicular syringomyelia refers to the fluid formed between the testicular sphincter, which occurs within the scrotum. Spermatic sphincter effusion occurs within the spermatic sheath and the site of occurrence is located in the inguinal region; 2. The pathogenesis is different. Testicular sphincter effusion is caused by infection or trauma in the testicular sphincter cavity, resulting in increased exudate and decreased absorption, which can then form the manifestation of effusion. While spermatic sphincter effusion may be due to infection in the spermatic cord area or due to congenital unclosed sphincter, the fluid in the abdominal cavity flows into the spermatic sphincter cavity, forming spermatic sphincter effusion; 3. It is possible that the two are the same disease, for example, the testicular sphincter cavity and the spermatic sphincter cavity are completely connected, which then forms traffic sphincter effusion. When standing and moving, the effusion is located within the sphincter cavity with the testis, and when lying down, it can be located in the spermatic cord sheath cavity or completely refluxed into the abdominal cavity.