The specific hazards of cryptorchid surgery are: 1. The surgery itself causes damage to the spermatic cord, and in the process of pulling down the spermatic cord, the spermatic cord is too short, resulting in local vascular damage and testicular ischemia or atrophy after surgery. 2. The spermatic cord is twisted during surgery, and after surgery, the child develops acute testicular ischemia and testicular necrosis which affects the spermatogenic function. 3. Wound infection occurs after surgery, which then leads to cryptorchid infection and testicular ischemia and atrophy. 4.During the surgery, the vas deferens is too thin, and during the separation process, the vas deferens is fractured and damaged and cannot be anastomosed, resulting in secondary infertility due to spermatogenesis and sperm transport. 5.After surgery, infection of the scrotal wound causes testicular infection and ischemic necrosis or atrophy. 6.Insecure surgical fixation, postoperative testicular retraction, surgery Failure and need for secondary surgery.