I'm not actually sure. I had surgery in 2010 and 2011 because my intestine ruptured. I knew I'd be bowel IC for a bit, but I wound up totally incontinent because they damaged my bladder in the follow-up surgery. I got my bowel control mostly back after about a year, but the bladder problems didn't stop. My doctor at the time diagnosed me with stress incontinence, figuring that it was because of my anxiety of going through a nasty divorce at the time. It finally got to the point where I just had occasional spotting and very light leaks that a pad could hold. Then I had a spinal injury a couple of years ago and my bladder became so unreliable that I had to go back to diapers 24/7 because I get the urge but never know if I'll be able to hold it or if it's just going to release until the pressure goes down, or if it's going to totally empty itself. My doctor who was treating my back didn't really want to diagnose it as related to my back injury, because of my history with incontinence following surgery. He said it was probably the final straw in causing my current loss of control, but he was more concerned with my pain and mobility than my incontinence. So I still leak and have wetting accidents. I also sometimes can't control my bowels, but that's usually when I'm sick with tummy issues.