Well, if there's any damage to the spinal cord/cauda equina lower down due to injury, degeneration, that sort of thing, then pressure can be put on certain nerves that allow proper functioning of bowel and bladder. So say, someone falls of a horse, injures their spine, and then has a bladder that overdoes it, then switches and doesn't allow urination at all. That is a red flag that those nerves are in trouble and it could become a life threatening issue quite quickly.

So the red flags always need to be checked on to determine if there's an issue or not.