hi and thanks for the question,
passing out blood as such is some what a medical emergency. It is imperative to exclude a gastrointestinal bleeding
of hemorrage. Uncontrolled bleeding could cause hypotension
in some cases. Other causes of bleeding like hemorroids and infections are possibilities.
Consulting a gastroenterologist for a clinical evaluation, stool exams and endoscopic examinations to exclude bleeding is urgent and very important.
hope this helps,
Thanks and best regards,