Pediatric hernia, or pediatric inguinal hernia, is commonly referred to as “detrusor” and is the most common condition in pediatric urologic surgery. During the embryonic period, there is an “inguinal sphincter” in the groin that helps the testicle descend into the scrotum or the round ligament of the uterus is fixed. In some children, the sphincter does not close completely after birth, resulting in the entry of the small intestine, omentum, ovaries and fallopian tubes into the sphincter, which becomes a hernia; if only abdominal fluid enters the scrotum, it becomes a scrotal edema. The general incidence of hernia is 1-4%, 10 times higher in boys than in girls, and even higher in premature babies, and it may occur on both sides. Symptoms A hernia may occur days, months or years after birth. Usually a bulging mass in the groin, sometimes extending to the scrotum or labia, is present after crying, movement, or defecation; it may disappear on its own after bed rest or sleep. In severe cases, there will be abdominal pain, nausea, vomiting, anorexia or crying and restlessness. 2. Treatment Surgery is the best treatment for pediatric hernia. It is usually performed under general anesthesia with a high ligature, which is safe and does not take long. If a hernia occurs, it should be treated early to prevent the contents of the hernia sac from occluding, making surgery more difficult and life-threatening. As for scrotal edema, it can be observed until the first year of age and if it does not disappear, surgery can be performed; however, careful follow-up is needed to note the possibility of hernia formation.