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Rectal discharge


Rectal discharge (also called anal discharge, anal drainage, anal seepage, or anal leakage) is intermittent or continuous expression of liquid from the anus (per rectum). This is closely related to types of fecal incontinence (e.g. fecal leakage) but the term rectal discharge does not necessarily imply degrees of incontinence. Types of fecal incontinence that produce a liquid leakage could be thought of as a type of rectal discharge.

Different types of discharge are described. Generally "rectal discharge" refers to either a mucous or purulent discharge, but, depending upon what definition of rectal discharge is used, the following could be included:

There are many different types of rectal discharge, but the most common presentation of a discharge is passage of mucus or pus wrapped around an otherwise normal bowel movement.

Rectal discharge has many causes, and may present with other symptoms:

Pus usually indicates infection. Frequently medical sources do not differentiate between the two types of discharge, instead using the general term mucopurulent discharge, which, strictly speaking, should only be used to refer to a discharge that contains both mucus and pus. Purulent discharges may be blood-streaked.

Mucus coats the walls of the colon in health, functioning as a protective barrier and also to aid peristalsis by lubrication of stool. Mucous discharges can be thought of in two broad categories:

A mucous rectal discharge may be blood-streaked. With some conditions, the blood can be homogenously mixed with the mucus, creating a pink goo. An example of this could be the so-called "red currant jelly" stools in intussusception. This appearance refers to the mixture of sloughed mucosa, mucus, and blood.

Note: "mucus" is a noun, used to name the substance itself, and "mucous" is an adjective, used to describe a discharge. "Mucoid" is also an adjective and means mucus-like. "Mucinous" strictly speaking refers to something having a mucin-like attribute, but it often is used interchangeably with the word "mucous" (as mucus usually contains a high percentage of mucin).


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