Wandering testis refers to one or both testicles often not fixed in the scrotum, irregularly wandering in the groin and other places, affecting its spermatogenic function. Wandering testis refers to the fact that one or both testes are often not fixed in the scrotum, and irregularly wandering in the inguinal area above the root of the penis, in the abdominal cavity and other places. Possible causes include congenital developmental abnormalities, acquired severe trauma, and so on. A wandering testis can affect its physiological function of spermatogenesis due to its altered location and temperature, which can lead to infertility and other disorders. Wandering testes can be fixed in the scrotum through surgical treatment. Commonly used procedures include testicular immobilization and testicular autotransplantation. If there is any discomfort, it is recommended to consult a doctor in time for diagnosis and treatment.