To the Editor: Colonic irrigation is the introduction of a large volume of fluid into the colon via the rectum. This volume may be up to 50 litres, run in and out by means of a rectal tube, in an effort to empty the bowel. This treatment is often administered by a practitioner of complementary or alternative medicine, without medical advice. The fluid may be driven by gravitational or mechanical force.1 Recognised risks from colonic irrigation are electrolyte imbalance, bowel perforation and communicable diseases such as amoebiasis.2
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