Rectal douching, also known as anal douching, is the act of rinsing the rectum with intent to clean it, typically in preparation for anal sex. An instance of this rinsing or a tool used to perform the rinse may be called a rectal douche. Rectal douching, also known as anal douching, is the act of rinsing the rectum with intent to clean it, typically in preparation for anal sex. An instance of this rinsing or a tool used to perform the rinse may be called a rectal douche. Rectal douching is a hygienic practice to clean the rectum in preparation for anal sex or hydrating the rectum to void hardened stools as opposed to a pharmaceutical method to soften the stool. Rectal douching is distinguished from anal cleansing, which is the routine cleaning of the anus after defecation, and enema, which is the rinsing of part of the large intestine.