Incontinence is a relatively common condition, particularly in obese individuals. Defined as involuntary passage of urine or feces, incontinence is rarely associated with serious underlying pathology, but can have a profoundly negative impact upon quality of life, limiting daily activities and affecting psychological wellbeing, social interaction and interpersonal relationships. Many people with incontinence are reluctant to seek help, either due to embarrassment or because they believe that nothing can be done. However, in the majority of cases, appropriate intervention can lead to significant symptomatic reduction or complete cure.

The large intestine carries out the function of absorption of water and electrolytes as well as storing waste until it can be expelled. It is also responsible for maintaining water balance and some absorption of vitamins such as vitamin K. The mixture of remaining food and intestinal juices called chyme in the colon is devoid of almost all nutrients and water; it consists of primarily the undigested food with some amount of water and electrolytes.