Fecal impaction

Alternative names:

impaction of the bowels

Definition:

Chronic constipation may lead to the formation of a large mass of dry hard stool within the rectum. The mass may be large enough to be unpassable. Watery stool from higher in the bowel may move around the mass and leak out causing soiling of the underwear.

Causes, incidence, and risk factors:

Certain people are at greater risk for developing a fecal impaction due to chronic constipation. People with increased risk include anyone who is taking any type of narcotic pain medication, certain types of chemotherapy, anticholinergic medications, chronic use of anti-diarrhea medications, people with decreased mobility, and people who have a limited diet, especially fluids.