Minimally invasive surgery for appendicitis also requires shaving, the professional term for shaving refers to the preoperative skin preparation, or skin preparation for short. In order to minimize the amount of bacteria on the patient’s skin, it is usually performed with a professional skin preparation knife, shaving without damaging the skin, in conjunction with the use of a hair removal agent. Especially for abdominal surgery, the main area to be removed, is the pubic area below the umbilicus and the perineum where hair and dirt accumulate. Timely and effective skin preparation reduces the bacteria on the skin and does not interfere with the disinfection of the skin on the operating table.