(Disclaimer: This article is for scientific purposes only, in order to protect the patient’s privacy, the relevant information in the following content has been processed) Abstract: Cryptorchidism is defined as the failure of the testis to descend into the scrotum, in this article, the child’s testis was located in the inguinal region on one side, and the size of the testis was significantly smaller than that of the opposite side, therefore, he came to our hospital, and was diagnosed with cryptorchidism after examination, and his ultrasound suggested that the affected side of the testis was of a small size, and there was no malignant change, so the child was given a The child was given a single-port laparoscopic descent fixation of the affected testicle, and the testicle was successfully lowered into the scrotum. Basic information] Male, 10 years old [Type of disease] Cryptorchidism [Hospital] Union Hospital of Huazhong University of Science and Technology Tongji Medical College [Date of consultation] August 2021 [Treatment plan] Surgery (single hole laparoscopic descending and fixation of the affected testis) [Treatment cycle] 3 days, regular follow up [Result] The child’s testis was successfully descended into the scrotum. The child had only one testicle and the other one was hidden in the inguinal area and had not descended, so he came to our hospital. We examined the child and found that one testicle was located in the inguinal area and the size of the testicle was significantly smaller than that of the opposite side, so we diagnosed him with cryptorchidism. Since the child did not receive treatment until puberty, not only did the child miss the best time for treatment, but also increased the incidence of postoperative cancer. After the examination made it clear that the child had cryptorchidism, ultrasonography was performed for the child, which indicated that the size of the testis on the affected side was on the small side and there was no malignant lesion. Subsequently, chest radiographs, electrocardiograms, blood counts, blood coagulation function, four items of infections, and biochemical complete set were perfected, and after no apparent abnormality, hospitalization was arranged, and the child was admitted to hospital for the second day, and underwent a single-hole laparoscopic descending and fixing operation of the testis on the affected side under general anesthesia. The testicle was successfully lowered into the scrotum without any obvious bleeding in the abdominal cavity, and there was no need to remove the stitches after the operation. After the operation, the child’s testicle was successfully lowered into the scrotum, and after 3 days of postoperative observation, the surgical incision healed well, and the child did not complain of any other discomforts, so he was discharged from the hospital for recuperation. At the time of discharge, the child was discharged from the hospital with a review of both testes, which showed that both testes were located in the scrotum, but the development of the testes on the operated side was slightly affected, but if the healthy testes functioned normally, unilateral cryptorchidism would not affect the fertility problem. At present, the child has been recovering for more than 2 years, with no obvious malignant changes, and needs to continue to be reviewed regularly. After active treatment, the child’s testicle was successfully lowered into the scrotum. As the child’s wound may bleed after surgery, in order to avoid infection, the child’s family is advised to go to the hospital in time to change the dressing of the child’s wound. In order to minimize the possibility of testicular retraction, it is recommended that the child avoid strenuous exercise for 1 week after the operation and take appropriate bed rest. After the operation, the development of the testicle on the affected side was closely observed, and the child was recommended to undergo regular checkups to ascertain the changes in his condition. V. Personal insights In clinic, children who have had cryptorchidism usually have a 5-10 times increased risk of developing testicular germ cell tumors, while children who are given early surgical treatment can reduce the probability of testicular cancer to a certain extent, but the probability of cancer is still higher than normal people, so children with cryptorchidism need to be regularly rechecked and examined after puberty. Although cryptorchidism is a common disease, some children’s families may neglect their children’s condition, which leads to the lack of timely treatment, and if timely treatment can be provided, the fertility of the children may be greatly reduced. In this case, the child was neglected by his parents and received treatment at a late stage, but fortunately, after treatment, the child’s testicles were successfully lowered to the scrotum, and a satisfactory therapeutic effect was achieved.