Pediatric hernia is one of the most common diseases in pediatric surgery and hernia surgery and mainly includes two types of congenital inguinal hernia and umbilical hernia. The main factors of pediatric hernia are congenital, inguinal hernia is mainly due to unclosed sphincter, umbilical hernia is due to failure of the umbilical ring to close in time and premature and low weight infants due to incomplete growth and development at birth. The onset of pediatric hernia may occur a few days or months after birth, and even after the age of 4 or 5 years in some children. Pediatric hernia can be treated conservatively and surgically, as it has the potential to heal spontaneously up to the age of 1 year and surgery is considered beyond the age of 1 year. So when is the best time to treat a pediatric hernia? The best time for pediatric hernia surgery is 4 to 5 years old. A hernia will not be a problem in children within 1 year of age, so there is no need for parents to request surgery immediately when they find out their child has a hernia. Parents can help their child reset the hernia with manipulation and wrap it up with a hernia band, and it can usually heal itself within 2 years of age. In addition, pediatric hernia requires general anesthesia, so try to operate as late as possible until the child is 4 to 5 years old, and above 4 years old and up to 6 years old is the least worrisome period for surgery. However, it should be noted that there are some cases in which a child’s hernia should be treated early. For example, if a child’s hernia mass is sent back by manipulation but still comes out several times a day repeatedly, or if the mass is stuck there and cannot be sent back, it should be treated early.