Enemas are an effective treatment measure in the management of intestinal obstruction. An enema involves a nurse using an enema bag to introduce about 500 milliliters of soapy water through a rounded-tip catheter into the rectum via the anus. Typically, the catheter is inserted about 30 centimeters deep. The purpose of injecting soapy water into the rectum is to stimulate intestinal peristalsis, leading to the expulsion of intestinal contents. During this process, it is important to avoid damage to the intestinal mucosa and consider the patient's tolerance. Generally, it is preferable to retain the soapy water for an extended period for better results.