Enema is a certain amount of solution through the anal canal, from the anus through the rectum into the colon. The main purposes of enema are: ① stimulate intestinal peristalsis, soften and eliminate feces, intestinal gas, reduce abdominal distension; ② clean up the intestinal tract: prepare for surgery, examination; ③ dilute or remove harmful substances in the intestinal tract, reduce poisoning; ④ cool down for children with high fever; benefits of baby enema: can stimulate intestinal peristalsis, soften, remove feces, and have a cooling effect, dilute intestinal toxins, reduce absorption, low temperature solution to cool down for children with high fever. In addition, it can also achieve the supply of drugs, water and other therapeutic purposes. Rectal administration can avoid the baby oral medication difficulties, accidentally into the respiratory tract and other problems, in addition, in some spasms of the emergency situation, can not immediately open the intravenous channel, directly through the rectal administration of drugs can quickly relieve the condition. The disadvantages of baby enemas: a. easy to perforate the intestinal tract infection caused by the intestinal tract of adults are very weak, not to mention the intestinal tract of infants and children. Long-term and irregular operation of the enema, easy to cause intestinal perforation, and damage to the intestine will be fecal and bacterial “attack” caused by infection. Therefore, the baby within 1 year old should not easily enema. Second, the amount of drugs can not be grasped enema of drugs, part of the intestinal tract will be excreted, part of the intestinal wall mucosa absorption, but because the amount of intestinal wall mucosa absorption can not be estimated, a little carelessness may occur in the phenomenon of overdose, some drug components may also damage the local skin, causing ulceration. Third, easy to cause bone marrow damage enema therapy commonly used hormones such as dexamethasone and antipyretic aminopyrine are overdosed, generally 3-5 times. These drugs can cause bone marrow damage. Fourth, damage to the intestine rectum has its inherent physiological environment, long-term or repeated rectal drip drug delivery, will lead to changes in the rectal mucosa, rectal pH, rectal wall secretion absorption and other physiological functions and physiological environment, damage to the intestine. V. Water-electrolyte disorders Long-term improper enemas can cause water loss in the baby’s body containing electrolytes, and may endanger the baby’s life when there is a serious acid-base imbalance.