Celiac disease, liver issues, and gallstones are just some of the conditions that can cause the change in stool color.

But if you’re always in pain or running to the bathroom, you might have a digestive disorder like Crohn’s disease or celiac disease ... fiber diets can help you poop less.

The high levels of antibodies in the blood confirm that the person suffers from celiac disease. Stool sample test: A stool sample test is also recommended to detect the fat content in the faeces.