1）.Ordinary surgery can only operate on hernias that exist outside the body or recur, and cannot check or determine whether there is a potential hernia on the opposite side, and often the other side appears again not long after one side is done. Kong Chih-huan of the Department of General Surgery of the Capital Institute of Pediatrics 2), ordinary surgery can easily damage the spermatic cord and vas deferens because blood will obscure the view when cutting from the outside to the inside layer by layer, and the violent pulling may lead to postoperative scrotal edema and hematoma, and even testicular retraction to form medically-derived cryptorchidism. Laparoscopy is from the inside out, with a clear surgical field of view and almost no bleeding (as shown in Figure 1-3) 3), and ordinary surgery leaves obvious scar after surgery (as shown below)