From the perspective of modern aesthetics, most of them adopt the left and right cross-cutting method. In recent years, foreign countries have advocated vertical incision, that is, longitudinal incision. In my country, longitudinal incision was the main method in the past, and now 98% of abdominal surgeries use longitudinal incision. It has the following advantages: 1. It is most in line with the human anatomy. The abdominal wall muscles are composed of rectus abdominis, external oblique muscles, internal abdominal oblique muscles, etc. Transverse cutting means cutting off the above-mentioned muscles. After the muscles heal, they are permanently replaced by scar tissue. They have no elasticity, no toughness and tensile strength. Will people be strong? 2. Fewer complications. Abdominal wall hernia is caused by weak abdominal wall muscles or surgical destruction of abdominal wall muscles. The abdominal wall muscle fibers are longitudinally shaped, and the longitudinal movement hardly damages the muscles. During the operation, only one longitudinal suture is needed to open the abdominal wall to enter the abdominal cavity. . It is not advisable to affect health for the sake of beauty.