What can cause abdominal and back pain along with bright red blood in my stool?

Eval. These symptoms may not be related... You could have more than one problem. But if they all started around same time, it would be more concerning. Bright red blood is more concerning than dark blood if associated with back/abd pain. Or this could be hemorrhoid. You should see a doc for eval.

Related Questions

Noticed bright red blood in stool also have lower right abdominal and back pain have been taking Effexor (venlafaxine) for 3 weeks?

Most likely . Due to constipation from the Effexor (venlafaxine) and hemorrhoids, but depending on your age you may need a more thorough exam and possible colonoscopy. Do not ignore the bleeding. It is not normal. Get it checked properly. Read more...