Having Irritable Bowel Syndrome. Having A Round Formed Stool. Advice?
i don't think there is a reason to worry. This is normally seen,especially in ibs and stool shape and color depends on several factors such as which food are you taking,what time are u eating, fluids intake, bowel motility,bowel infections, liver and gallbladder function and many other.
considering you age and gender,tumors are rarely seen.
there would be progressive decrease in size of stool and blood in stool. your symptoms may be seen it mass is located closer to small intestines but you would have anameia and pain in this case.
so I don't think it is necessary to do colonoscopy at this point. You can do stool testing on blood later in life as a preventional test and everything else should be managed by balanced,healthy diet. Wish you good health.if you have any questions I ll be glad to help. regards