Enemas do not have a clinical effect on weight loss because the food eaten in the stomach is digested by the stomach, then absorbed by the small intestine, and finally reaches the large intestine, where the food residue is excreted in the form of stool. Enemas only speed up the process of excreting stool, without inhibiting the absorption of food or suppressing appetite. Patients who want to lose weight should consume less food, maintain the basic calories, and subsequently use exercise to lose weight, which can achieve good results. It should be noted that weight loss is not recommended for adolescent females, otherwise it will affect physical development and may lead to stunting.