Enema is mainly used for the treatment of constipation, generally require patients to retain the infusion of enema liquid for a period of time, can lie 10-20 minutes, but most patients generally can not insist, if patients can not insist on 10-20 minutes, it is generally recommended that patients at least lie down to retain 5 minutes, in order to make the intestinal infusion of liquid fully mixed with the stool, so that the stool dilution, easy to discharge, so the best enema can try to Therefore, it is best to try to hold the enema so that the fluid can be fully lubricated in the intestine so that the stool can be excreted as much as possible. If the patient is unable to hold it for a short period of time, you can have a family member or bed partner block the patient’s anus with toilet paper and make the patient’s buttocks slightly padded to maximize the holding time of the enema in the patient’s body and help the liquid and stool dilute fully so that the patient can pass stool more smoothly. If the patient persists for too short a time, the effect of the enema is not obvious, and the enema can usually be repeated after 3-4 hours. In addition to chronic constipation, enemas can also be used to treat chronic pelvic inflammatory disease as well as uterine and tubal incompetence. The main purpose of this is to retain the enema through the Chinese medicine solution, which is used to remove heat, anti-inflammatory and blood stasis from the anus to the rectum, so that the medicine can reach the pelvic lesions. The longer the retention time, the longer the drug can act on the local lesions.