Hello, my mother is 63 years old, she has polycythemia vera from 4 years. From 2-3 weeks she has a very little blood on the toilet paper, but not every day. Yesterday she has diarrhea with no blood or pain, but temperature 37.5C. Is it possible this blood to be result from the polycytemia. Thank you very much!

Summarized question: Does Polycythemia vera cause blood in the stools?