Testicular syringomyelia in adults is mainly categorized into primary and secondary factors. In adults, testicular syringomyelia occurs mainly due to the production of too much fluid within it, which cannot be completely absorbed on its own. When chronic inflammation of the syringomyelia exists, it may cause syringomyelia to develop, and when the fluid is small, it is often asymptomatic. The following secondary factors can also cause the development of testicular syringomyelia: 1. Orchitis, spermatitis, scrotal surgery, etc; 2. some parasitic diseases, such as schistosomiasis, filariasis, etc; 3. tumors, tuberculosis and other factors causing syringomyelia; When there is a more obvious swelling at the testicle and accompanied by pulling pain, even affecting sexual life or difficulty in urination, it is recommended to seek medical treatment in time.