An enema, also known as a clyster, is an injection of fluid into the lower bowel by way of the rectum.[1] The word enema can also refer to the liquid injected,[2][3] as well as to a device for administering such an injection.[4]
In standard medicine, the most frequent uses of enemas are to relieve constipation and for bowel cleansing before a medical examination or procedure;[5] also, they are employed as a lower gastrointestinal series (also called a barium enema),[6] to treat traveler's diarrhea,[7] as a vehicle for the administration of food, water or medicine, as a stimulant to the general system, as a local application and, more rarely, as a means of reducing body temperature,[1] as treatment for encopresis, and as a form of rehydration therapy (proctoclysis) in patients for whom intravenous therapy is not applicable.[8]
^ abCullingworth, A Manual of Nursing, Medical and Surgical:155