Bleeding from the anal area can be due to rectal_bleeding or Gastrointestinal Bleeding
(click the links above for more information)
Another possible reason could be hemorrhoids as well.
bright red blood usually suggest that the blood is coming from the lower part of the GI tract (large bowel or rectum).
If there is more than 2 tablespoons of blood, you need to be seen ASAP, as this is too much of a blood loss.
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