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  1. Gastrointestinal bleeding - Symptoms and causes - Mayo Clinic

    Oct 13, 2023 · The blood often shows up in stool or vomit but isn't always obvious. Stool may look black or tarry. Bleeding can range from mild to severe and can be life-threatening. Imaging …

  2. Blood in stool in adults - Mayo Clinic

    Find possible causes of blood in stool based on specific factors. Check one or more factors on this page that apply to your symptom.

  3. Rectal bleeding Causes - Mayo Clinic

    Dec 7, 2023 · Blood in your stool, on the toilet paper or in the toilet bowl can have various causes. See your doctor if it lasts more than a day or two.

  4. Rectal bleeding - Mayo Clinic

    Dec 7, 2023 · Rectal bleeding can refer to any blood that passes from your anus, although rectal bleeding is usually assumed to refer to bleeding from your lower colon or rectum. Your rectum …

  5. Fecal occult blood test - Mayo Clinic

    Jul 12, 2024 · The fecal occult blood test is typically done every year. The fecal occult blood test is one of several colon cancer screening tests available. Talk with your healthcare team about …

  6. Gastrointestinal bleeding - Diagnosis and treatment - Mayo Clinic

    Oct 13, 2023 · Tests also may be ordered, such as: Blood tests. You may need a complete blood count, a test to see how fast your blood clots, a platelet count and liver function tests. Stool …

  7. Colon cancer stool: What to look for and how to test at home

    Not all stool changes mean you have cancer, but some could be warning signs. When cancer grows in the colon, it can affect how a stool looks, the size and how often you go to the bathroom.

  8. Rectal bleeding When to see a doctor - Mayo Clinic

    Dec 7, 2023 · Blood in your stool, on the toilet paper or in the toilet bowl can have various causes. See your doctor if it lasts more than a day or two.

  9. Stool color: When to worry - Mayo Clinic

    Oct 10, 2024 · Stool comes in a range of colors. All shades of brown and even green are considered typical. Only rarely does stool color indicate a possibly serious intestinal condition. …

  10. Fecal immunochemical test - Mayo Clinic

    Nov 14, 2025 · FIT is one type of a fecal occult blood test (FOBT). The medical term for hidden blood is occult blood. Occult blood in the stool may be a sign of cancer or polyps in the colon …