 [ Symptoms ] i just noticed blood in my stool but have been taking high doses of ibuprofen the last few days is that the cause  i have been taking higher than normal doses of ibuprofen due to having the flu i think that is why i am seeing blood in my stool but do not know if i should go to a doctor i have noticed it just once it was bright red not dark thanks for any input [ Disease ] ibuprofen taken over time can cause a stomach bleed but blood from the stomach will not show up bright red in the stool it would be black as tar a more likely source for bright red blood would be a location near the anal opening a tiny fissure tear hemorrhoid skin tag etc hold off on the ibuprofen and aspirin for now and see your medical provider this is really the only way you could possibly find the source assuming the bleeding area has not already healed you medical provider can give you some home stool blood tests to do to check for any occult hidden blood that can be mixed with the stool and not obvious when using the toilet or wiping