Constipation

Habitual use of enemas to treat constipation is harmless.

False.

Habitual use of enemas is not harmless. Over time, enemas can impair the natural muscle action of the intestines, leaving them unable to function normally. An ongoing need for enemas is not normal; you should see a doctor if you find yourself relying on them or any other medication to have a bowel movement.

source: http://digestive.niddk.nih.gov/ddiseases/pubs//facts/index.htm