Cryptorchidism has become an increasingly common pediatric urological condition. Because it can affect the reproductive function in adulthood and even lead to testicular malignancy, it is also getting more and more attention. However, except for some children who are detected by doctors at birth, there are many patients who are discovered by parents or doctors unintentionally during their growth. Therefore, parents need to pay attention to your child’s scrotum and not just be happy to see a small penis, because cryptorchidism can lead to serious consequences of infertility. At present, many parents of children with cryptorchidism tend to neglect the treatment of their children, or are misled by certain aspects and miss the best time for treatment. In the past, it was often believed that surgery for cryptorchidism could be completed within 2 years of age. However, according to current research and clinical practice, many children with cryptorchidism often begin to have developmental delays around the age of half a year, and their testicles are already shrinking before they reach the age of 2. For example, in the following typical case, a child in a province near Guangdong was found to have cryptorchidism after birth, and an ultrasound examination at a local hospital at 6 months indicated that both testicles were the same size. The preoperative examination did not show any obvious testicular-like tissue, and during the surgical investigation, it was found that the testicle was extremely backward in development, and the testicle had atrophied to the point that it was basically gone, completely losing the function of a normal testicle, and in order to avoid testicular malignancy, an orchiectomy was finally performed. The parents fell into a long period of self-blame, but at this point it was too late to regret. Therefore, if a child is found to have cryptorchidism, please do not take it lightly, but need to pay attention to it, go to the hospital regularly for examination and timely treatment. Parents no longer need to worry about surgery and anesthesia.