Question: what are the causes for loss of bowel control?
Answer: Muscle damage. Injury to the rings of muscle at the end of the rectum (anal sphincter) may make it difficult to hold stool back properly. ... 
Nerve damage. ... 
Constipation. ... 
Diarrhea. ... 
Hemorrhoids. ... 
Loss of storage capacity in the rectum. ... 
Surgery. ... 
Rectal prolapse.