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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. …

  2. Gastrointestinal bleeding - Symptoms and causes - Mayo Clinic

    Oct 13, 2023 · Overt bleeding might show up as: Vomiting blood, which might be red or might be dark brown and look like coffee grounds. Black, tarry stool. Rectal bleeding, usually in or with …

  3. Baby poop: What to expect - Mayo Clinic

    Jan 26, 2024 · Black or dark green. After birth, the first stool a baby passes is black or dark green and tarry. This type of baby poop is known as meconium. Yellow-green. Your baby's poop …

  4. Mucus in stool: A concern? - Mayo Clinic

    May 30, 2024 · Larger amounts of mucus in stool, associated with diarrhea, may be caused by certain intestinal infections. Bloody mucus in stool or mucus along with belly pain may signal a …

  5. Undigested food in stool: What does it mean? - Mayo Clinic

    Oct 12, 2023 · Sometimes, you may see undigested food fragments in stool. This usually is high-fiber vegetable matter, which usually isn't broken down and absorbed in your digestive tract. At …

  6. Narrow stools: Should I be concerned? - Mayo Clinic

    Jan 11, 2024 · Narrow stools that happen now and then probably are harmless. But in some cases, narrow stools — especially if pencil thin — may be a sign that the colon is narrowing or …

  7. White stool: Should I be concerned? - Mayo Clinic

    Jul 3, 2025 · White stool isn't typical. If you have white stool, you should see a medical professional right away. A lack of bile causes white or clay-like stool. That may mean a serious …

  8. Urine color - Symptoms and causes - Mayo Clinic

    Oct 11, 2025 · Brown urine can be caused by: Food. Eating lots of fava beans, rhubarb or aloe can cause dark brown urine. Medicines. Some medicine that can darken urine are: …

  9. Green stool - Mayo Clinic

    Jul 8, 2005 · Green stool — when your feces look green — is usually the result of something you ate, such as spinach or dyes in some foods. Certain medicines or iron supplements also can …

  10. Green stool When to see a doctor - Mayo Clinic

    Jul 8, 2005 · Call a healthcare professional if you or your child has green stool for more than a few days. Green stool often happens with diarrhea, so drink plenty of fluids and seek immediate …