Pediatric hernia is one of the common pediatric surgical conditions that usually occurs shortly after the child is born and has a high incidence. The incidence rate is around 1% to 4%, 14 times higher in males than in females, and even higher in premature infants. The prominent clinical symptom is the recurrent appearance of a retractable mass in the inguinal region of the child shortly after birth, mostly about one month after the neonatal period and as late as after the age of one week. Pediatric hernia is mainly due to the weakness of the abdominal wall muscles and local lack of fascia in children, resulting in a local defect of the abdominal wall, from which the contents of the intestinal canal and other substances may protrude into the local subcutaneous area and form a hernia when the abdominal pressure increases. In the early stage of pediatric hernia attack, the subcutaneous swelling of the abdominal wall usually appears when the child cries and defecates, and can disappear after quietness or sleep. However, if the local intra-abdominal pressure continues to increase, the mass may descend into the scrotum. At this time, if the factor of increased intra-abdominal pressure can be lifted and an experienced parent or doctor can push the subcutaneous mass toward the abdominal cavity with the child lying quietly, the abdominal mass can usually disappear soon, and this is a reversible hernia. If the mass does not return to the abdominal cavity in time, intestinal intussusception may occur, leading to severe abdominal pain and crying, further aggravating the intussusception and requiring prompt medical attention. In conclusion, if your child has a pediatric hernia, don’t worry too much. If the hernia can be completely retracted, continue to observe it, if not, you need to go to the hospital in time.