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  1. 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. Stool color is …

  2. Blood urea nitrogen (BUN) test - Mayo Clinic

    Aug 5, 2023 · Learn about the blood urea nitrogen (BUN) test to assess kidney function and what possible results could mean.

  3. Hematocrit test - Mayo Clinic

    This can indicate: The blood has too few healthy red blood cells. This condition is called anemia. That the body does not have enough vitamins or minerals. Recent or long-term blood loss. When the …

  4. Sexually transmitted disease (STD) symptoms - Mayo Clinic

    Mar 12, 2024 · Sexually transmitted diseases are infections spread mainly by contact with genitals or bodily fluids. Also called STDs, STIs or venereal disease, sexually transmitted infections are caused …

  5. Alanine aminotransferase (ALT) blood test - Mayo Clinic

    Jun 3, 2025 · Overview An alanine aminotransferase test, also called an ALT test, is a blood test to check the health of your liver. ALT is a substance found mostly in the liver. If your liver is OK, the …

  6. Low hemoglobin count Causes - Mayo Clinic

    Nov 13, 2025 · A low hemoglobin count on a blood test could be normal for you, or it could indicate that you have a condition that needs medical attention.

  7. Paget's disease of the breast - Symptoms & causes - Mayo Clinic

    Sep 12, 2025 · This rare form of breast cancer causes breast skin changes. Learn about the symptoms, causes, diagnosis and treatments, including surgery.

  8. Urinalysis - Mayo Clinic

    Oct 24, 2023 · Bacteria, yeast or parasites can indicate an infection. Casts — tube-shaped proteins — can be a result of kidney disorders. Crystals that form from chemicals in urine might be a sign of …

  9. Suspicious breast lumps - Symptoms and causes - Mayo Clinic

    Symptoms Breast tissue typically might feel lumpy or ropy. You also may have breast tenderness that comes and goes with your menstrual period.

  10. Bile reflux - Symptoms & causes - Mayo Clinic

    Sep 20, 2025 · Bile reflux can be difficult to tell from acid reflux. The symptoms are alike, and the two conditions may happen at the same time. Bile reflux symptoms include: Upper belly pain that may be …