Conversation: The conversation between human and AI assistant.
[|Human|] I have been having slight blood in my stools, so I thought I must have a hemmoriod, but it didnt hurt.  Today Ive been having severe pain in my stomach and lots of very hard bowels movements, but they come out with black flakes in the stool.  Should I be concerned?
[|AI|]  Hello! I read carefully your query and understand your concern. There are many causes of red blood in stools and hemorrhoids is one of them especially if you suffer chronic constipation, and you have lack of physical activity. The diagnosis can be confirmed by physical examination(rectal examination) or lower endoscopy. The presence of black tar stools(not only darker than usually but black) indicates upper digestive tract bleeding. Associated with severe stomach pain it indicates a peptic ulcer. You need a complete evaluation, stool examination to confirm the presence of blood, complete blood work, upper endoscopy to visualize every possible lesion is stomach. I suggest consulting a physician and get evaluated. Take care Chat Doctor.