Side effects of enema fever will damage the rectal wall, intestinal dysfunction and lead to increased stool or constipation. 1. Rectal wall damage: mostly due to the negligence of enema operation or the operator’s action is too big, which leads to damage to the rectal wall, causing blood in the stool, defecation pain performance, or even lead to rectal perianal abscess performance. 2. Intestinal dysfunction: due to the frequent application of enemas for antipyretic treatment, there may be excessive stimulation of the intestinal tract, thus causing intestinal dysfunction, and constipation or increased frequency of stool clinical manifestations. Enema antipyretic effect is very obvious, this method can quickly make the body temperature drop, whether it is a viral or bacterial infection can be used in this way to reduce fever, but pay attention to its side effects. It is recommended that patients with fever seek medical treatment in time, and choose the appropriate treatment method under the guidance of the doctor.