If a child’s scrotum is empty and parents cannot find the testicles in the scrotum, including when they are most relaxed such as sleeping or bathing and still cannot reach them, the diagnosis of cryptorchidism in children is clearer. To further confirm the diagnosis that the testicles are in the groin or abdominal cavity, or even that the testicles are absent, further examination by a specialist in pediatric surgery is required, and an ultrasound of the urinary system should be done to locate the testicles, measure their size and position, and decide on further treatment plans. Generally, the treatment age for pediatric cryptorchidism is 6-12 months, the operation is relatively simple, and the chance of one-time descent to the scrotum is also higher, the older the age, the more difficult the operation is, the chance of descent and the worse the testicular development is, the latest operation age should not exceed 2 years old, this is strictly stipulated, because after 2 years old, the testicle will cause ischemia and hypoxia in the inappropriate living environment, resulting in testicular dysplasia This is something that parents should pay attention to.