I am worried about colon cancer and have no blood in stool or black stool unless I take pepto bismol and I am due for tests soon but I wake every morning with serious upset stomach if I have stool sitting at bottom of colon above my rectum and I have pencil thin stool,
Hi.how old are you? And do you have risk factors of colon cancer?if you want to make sure, you could consult with a gastroenterologist, ask for FOOT testing and screening colonoscopy. Hope this helps. Good day!!~ Chat Doctor.