Constipation
Constipation is a common condition which causes irregular passing of stools (poo) or being unable to empty your bowel completely. It can also cause stools to become hard, lumpy, larger or smaller than usual.
There are a variety of factors that can cause constipation, so it can be difficult to identify the exact cause, but common reasons include, not eating enough fibre, ignoring the urge to pass stools and not drinking enough fluids. For most people, constipation is a short-term inconvenience, but for some people it can be a long-term condition that causes discomfort.