A<unk>  is an alternative technique for cleansing the human rectum either for reasons of health, or for sexual hygiene. It is accomplished by squirting a small amount of sterile lubricant into the rectum, resulting in a bowel movement more quickly and with less violence than can be achieved by an oral laxative. It is called "dry" in contrast to the more usual wet enema, because no water is used.
Dry enema
Nutrient enema
Sigmoidoscopy
Colostomy
Defecography
Magnetic resonance enterography
Double-contrast barium enema
EGS 