A bowel wash, or colonic lavage, involves washing out the colon with large quantities of solution to clear out feces. It is used to prepare the colon for surgical or diagnostic procedures, dilute and remove toxic agents, reduce fever, supply fluids and electrolytes, stimulate peristalsis, and relieve inflammation. Contraindications include bleeding hemorrhoids, diarrhea, recent rectal surgeries or infections, intestinal obstructions, and various colon conditions. Solutions used range from plain water to antiseptic solutions. The procedure involves inserting a lubricated rectal tube and pouring in the heated solution until the return flow runs clear, then removing the tube gently.