Ask Your Health Question and Get an Answer ASAP
I believe you should report this to your doctor for further investigation. Several things can change the shape of the stool, including a narrowing or IBS, but having flat stools are also sometimes a sign of colorectal cancer. If there are growths in that area, it can compress the stool and it comes out flat. You don't mention any other symptoms, but I would see the doctor for an exam just the same.