If you don't poop often and when you go does it all come out or how much remains if not?

No: If you don't have regular bowel movements you may have constipation or irritable bowel symdrom. When you do have a bowel movement, you only empty the stool the very end of the colon. An average bowel movement may weigh just over 1 pound.

Agree with Dr G: Increasing fiber in diet from fruits and veggies with increase bowel movements.Can also get more fiber with Benefiber,Fiber on,metamucil etc.Prune juice and apricot juice will help if constipated.Also remember that if it does not go in ,it will not come out.So if not eating alot then will not have alot or large BM