The peak age of childhood tumor incidence is under 5 years old. Common solid tumors in urology include testicular tumors, nephroblastoma, and teratoma. With the continuous medical progress, the cure rate of pediatric tumors has gradually improved. Stage I and II nephroblastoma have good results with 5-year survival rates up to 80-85%, and other solid tumors have 5-year survival rates up to about 60-70%. It is especially worth mentioning that tumors are often characterized by early detection, early diagnosis, and better results in early treatment. Unfortunately, according to incomplete statistics, 60% of children with tumors are already in the middle and late stages when they are diagnosed. Parents live most closely with their children and are most likely to detect early disease signals in their children. Children usually do not notice changes in their bodies by themselves and are not very good at describing their conditions, so parents should pay close attention to their children’s physical conditions. When bathing or changing clothes, pay more attention to the child’s body for any abnormal masses, and observe the child’s stomach more often, feel it with your hands, and press it. In the case of young boys, you should also pay attention to whether the scrotum is symmetrical on both sides and whether the “balls” feel the same on both sides, and come to the hospital when you find abnormalities. Sometimes some small findings may give children a valuable opportunity for early diagnosis and treatment. Therefore, we call on parents to pay attention to children’s tumors, pay close attention to their children’s physical condition, and have annual routine medical checkups to help children with tumors get diagnosed and treated earlier.