Medical enemas are sterile. Medical disposable examination devices and instruments are sterile. When the patient needs to carry out abdominal or intestinal surgery before, as well as intestinal obstruction or bowel difficulties, can choose medical sterile enema for enema laxative treatment, can also be used for intestinal inflammatory diseases of drug retention enema treatment. Medical examination and treatment equipment, mainly used disposable, plastic or high temperature sterilization of stainless steel products, mainly to avoid the invasive examination or treatment process, the patient will appear cross-infection caused by hospital infection. It is also recommended that patients follow the principle of asepsis during treatment to avoid cross-infection.