(Disclaimer: This article is only for popularization of science, in order to protect the patient’s privacy, the relevant information in the following content has been processed) Abstract: A couple came to the clinic with a 2-year-old boy, complaining that the development of the right side of the scrotum was different from that of the left side of the scrotum, and it was suspected that the testes might not have descended normally, and they came to the clinic in order to seek diagnosis and treatment. Further examination of the child revealed a mass above the right inguinal ring, and scrotal ultrasound showed abnormal echoes in the right inguinal region, suggesting cryptorchidism. After communicating with the parents, we chose surgical treatment, and the child’s right testicle eventually developed normally. Basic information] Male, 2 years old [Type of disease] Ectopic testis (cryptorchidism) [Hospital] Union Hospital of Huazhong University of Science and Technology Tongji Medical College [Date of consultation] January 2021 [Treatment plan] Surgery (testicular immobilization) + intravenous drip (cefuroxime sodium for injection) [Treatment period] Hospitalization for 3 days [Treatment effect] Normal development of the right testis I. Initial consultation A couple came to the clinic with a 2-year-old boy. The parents complained that when bathing the child, they found that the right scrotum did not develop in the same way as the left scrotum, but did not pay attention to it. The child was now almost 3 years old and there was no change in the right testicle, so they suspected that the testicle had not descended normally, and came to the clinic for diagnosis and treatment. Further examination of the child was performed, and it was observed that the child’s penis was developing normally, and no testicle was touched in the right scrotum, and a mass was touched above the right inguinal ring, which was tough, smooth, and movable, and was considered to be a testicle. Color ultrasound of the scrotum was performed, and the examination suggested abnormal echoes in the right inguinal region, which was considered ectopic testis, and there was no obvious enlarged appendix in the right lower abdomen. Combined with the child’s signs and scrotal ultrasound examination, the child was considered to have an ectopic testis, i.e., the right testis descended abnormally and stayed in the left inguinal region, and was admitted to our department for further surgical treatment. After the child was admitted to the hospital, the preoperative examination was completed, including blood routine, blood biochemistry, liver function, coagulation function, etc., and the results returned no obvious abnormality and no absolute contraindication for surgery. As the child was already 2 years old and the testicle could not descend by itself, testicular fixation was recommended to pull it down and fix it, and the child’s family agreed to the surgical treatment. Therefore, the child underwent testicular fixation under general anesthesia, and the surgery went smoothly. The operation went smoothly, with less bleeding, and the vital signs were stable after the operation, without fever, chills, cough and sputum. Because of the pain of the surgical wound, the child was irritable and often cried, but could stop after the parents pacified. After surgery, the wound was often disinfected and changed, so the wound healed well without redness, swelling, bleeding, pus, etc. The condition was stable, and the child was discharged after 3 days of hospitalization. One week after discharge, the stitches were removed and the wound healed normally. One year later, the scrotal ultrasound showed that the right testicle continued to develop without retraction. Precautions We are glad that the right ectopic testis can continue to develop after treatment, but we should pay attention to the following points after discharge: 1. Since the wound has not yet been removed after discharge, parents should observe the surgical site of the child more often, avoiding water and keeping it dry. At the same time, it is necessary to regularly disinfect and change the medicine, and if there is wound oozing and edema, it is necessary to consult the doctor in time for treatment; 2. In life, avoid strenuous exercise for a short period of time, pay attention to rest, and also pay attention to keeping warm. At the same time, pay attention to nutritional supplementation, eat more nutritious food, such as milk, eggs and so on. V. Personal feelings Ectopic testis refers to the testis that deviates from the normal path after descending through the inguinal canal and stays in an abnormal position. Treatment of ectopic testes varies according to the age of the child. For children younger than 6 months of age, close observation and no treatment is necessary for the time being, as there is still a possibility that the testicle will descend on its own before 6 months of age. However, if the ectopic testis has not descended to the normal site by the age of 2 years, it will need to be pulled down by testicular immobilization, but it will need to be removed if the testis is atrophic. In this case, the child was already 2 years old, so surgery was chosen, and the child did not need to be removed because the testicle was not atrophic and could be pulled down without difficulty.