The fecal incontinence severity index is based on four types of leakage (gas, mucus, liquid stool, solid stool) and five frequencies (once to three times per month, once per week, twice per week, once per day, twice or more per day).
https://en.wikipedia.org/wiki/Fecal_incontinence
Many people with FI have a generalized weakness of the pelvic floor, especially puborectalis. A weakened puborectalis leads to widening of the anorectal angle, and impaired barrier to stool in the rectum entering the anal canal, and this is associated with incontinence to solids.
https://en.wikipedia.org/wiki/Fecal_incontinence
FI is a sign or a symptom, not a diagnosis. Incontinence can result from different causes and might occur with either constipation or diarrhea. Continence is maintained by several inter-related factors, and usually there is more than one deficiency of these mechanisms for incontinence to develop.
https://en.wikipedia.org/wiki/Fecal_incontinence
Normal bowel control relies on the proper function of the pelvic muscles, the rectum (the lower end of the large intestine), the sphincter muscles (the muscles in the anus), and the nervous system. Injury to any of these areas can result in bowel incontinence.
http://www.healthline.com/symptom/fecal-incontinence
Accidental bowel leakage can occur if there are problems with the muscles and nerves in the rectum and pelvis. The large intestine (also called the colon) must be able to form and store the stool until you can get to the bathroom.
http://www.acog.org/Patients/FAQs/Accidental-Bowel-Leakage
Glossary. Accidental Bowel Leakage: Inability to control the bowel, which can lead to leakage of solid or liquid stool (feces) or gas. Anoscopy: An exam of the anus using an instrument called an anoscope.
http://www.acog.org/Patients/FAQs/Accidental-Bowel-Leakage
There are several ways that accidental bowel leakage can be treated. The type of treatment that you have depends on the cause of the problem and how severe it is. You may be referred to other health care providers who specialize in treating accidental bowel leakage. Treatment can include lifestyle changes, biofeedback, medications, sacral nerve stimulation, injections, and surgery.
http://www.acog.org/Patients/FAQs/Accidental-Bowel-Leakage
This may occur when there is a large mass of feces in the rectum (fecal loading), which may become hardened (fecal impaction). Liquid stool elements are able to pass around the obstruction, leading to incontinence.
https://en.wikipedia.org/wiki/Fecal_incontinence
Women with a bowel control problem may leak gas or liquid or solid stool. Other symptoms may include the following: 1  A strong or urgent need to have a bowel movement. 2  Stool spotting on underwear or pads. 3  Diarrhea. 4  Constipation.
http://www.acog.org/Patients/FAQs/Accidental-Bowel-Leakage
Diarrhea. Diarrhea is the result of loose or liquid stools. These loose stools can cause an immediate need for a bowel movement. The need can be so sudden that you do not have enough time to reach a bathroom.
http://www.healthline.com/symptom/fecal-incontinence
causes for bowel leakage
Constipation or diarrhea are the causes for bowel leakage. Bowel leakage can caused by concstipation or diarrhea.