Bowel incontinence is the inability to control your bowels. When you feel the urge to have a bowel movement, you may not be able to hold it until you get to a toilet. Millions of Americans have this problem. It affects people of all ages - children and adults. It is more common in women and older adults. It is not a normal part of aging.
Causes include
Constipation
Damage to muscles or nerves of the anus and rectum
Diarrhea
Pelvic floor disorders
Treatments include changes in diet, medicines, bowel training, or surgery.
NIH: National Institute of Diabetes and Digestive and Kidney Diseases