Endoscopy can be useful, not only in diagnosing GI bleeding, but also for treating it. The use of special scopes with camera and a laser attachment can be used stop the bleeding. In addition, tools can be used under visualization with the scope to apply clips to the bleeding vessels to stop the bleeding.
If hemorrhoids are the cause of your bleeding, over-the-counter treatments might work for you. If you find that store-bought remedies are ineffective, your doctor might use a heat treatment to shrink your hemorrhoids. Infections are usually treated with the use of antibiotics.