One of the most classic analogies is that the outer tire of a car tire has a hole and the inner tire has a bulge. Why do you get a hernia? The local support of the abdomen is reduced. It is worth mentioning that: during embryonic development male testes and spermatic cords descend to the scrotum through the inguinal canal, and the right side is later than the left side, and congenital and young-adult hernias are mostly related to this, so inguinal hernia is more often seen, and the right side is more often than the left side; elderly people with muscle atrophy or weak transversal abdominal fascia have poor support of the straight hernia triangle and are prone to get a straight inguinal hernia. With abdominal wall defect, under repeated and continuous abdominal pressure, the inner layer of peritoneum protrudes from the gap, gradually increases in size and protrudes to the subcutaneous level, or even into the scrotum. How is a hernia treated? Since the hernia is caused by an abdominal wall defect, there are no medications that can treat an extra-abdominal hernia other than surgical repair.