Cryptorchidism in the groin must be treated surgically. The temperature of the inguinal region is 1.5-2 degrees higher than that of the scrotum, and the testicle is in the inguinal canal for a long time, which can easily lead to an impact on the spermatogenic function of the testicular spermatogenic tubules, resulting in abnormal spermatogenic function. Cryptorchidism in the inguinal canal should be detected early and testicular descent and fixation surgery should be performed early. The best time for surgery is recommended at the age of two. If the cryptorchid does not descend into the scrotum at the age of two, surgery is necessary, and long-term cryptorchid has the risk of causing testicular cancer. Studies in the literature show that unilateral cryptorchid infertility is up to 30% and bilateral cryptorchid infertility is up to 50%, and the incidence of testicular cancer has also increased significantly.