Syringomyelia 17mm generally does not need surgery; then if accompanied by obvious clinical symptoms, then need to consider surgery. Syringomyelia is a disease caused by the accumulation of fluid in the testicular syringomyelia after congenital syringomyelia developmental abnormality or acquired syringomyelia injury. With the increase of syringomyelia, the accumulation of fluid will compress blood vessels supplying blood to the testis and cause insufficient blood supply to the testis. 1. Do not need surgery: generally testicular effusion is less than 20mm, syringomyelia for testicular compression is light, at this time can be temporarily conservative treatment, patients usually avoid strenuous exercise, avoid standing for a long time, through the above methods can control the aggravation of the syringomyelia, and even gradually self-absorption and reduce, so that 17mm of syringomyelia can be temporarily without surgery and regular review. 2. Surgery is needed: if the syringomyelia compresses the testicles and causes obvious symptoms such as swelling and pain, or if the syringomyelia has a tendency to increase, it is recommended that surgery be performed to treat the syringomyelia. To summarize, if there is any discomfort, seek medical attention promptly.