Enemas have been used for centuries to relieve abdominal discomfort and to rid individuals of constipation.  Constipation is usually a result of not consuming enough fiber to keep your digestion going smoothly.  When digestion slows, too much water may be absorbed from waste in the colon causing feces to become dry and may in turn lead to blockages or constipation when the feces isn't excreted from the body.