Enemas are usually done properly, do not cause pain, and can be tolerated by most patients. Enema refers to the process of injecting liquid through the anus to irrigate the rectum and colon, and is divided into cleansing enemas, large quantities of unretained enemas, and retained enemas. Enema needs to be injected into the intestinal lumen, can promote defecation or treatment of localized inflammatory lesions in the intestinal tract, usually does not cause significant pain, only the feeling of lower abdominal distension, most patients can tolerate. However, if the health care workers operate improperly, the local did not do a good job of lubrication, enema apparatus is relatively hard, friction in the anus may cause pain, but this situation rarely occurs. If you need an enema, you should go to a regular hospital, cooperate with health care personnel to standardize the operation, avoid self-enema. During the enema, patients need to maintain a good mood, avoid too much tension, so as not to affect the effect of the enema.