10 months ago
Last edited at 9:56PM on 2/10/2013
When you die the muscles initially relax. Peristalsis, the muscular contractions that move material along the digestive tract stop. So if a person died and there was some fecal material in the sigmoid colon or the rectum, the relaxation might cause an expulsion of material. But if a person died and there was no fecal material below the splenic flexure it's likely that person would not have a bowel movement. Same thing with the bladder. If a person dies with urine in their bladder they will likely wet themselves, but urine production doesnt continue after death, nor does the movement of fecal material through the colon. It's just if there was any residual material present it would leak out after death. Does this make sense?