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  1. Stool color: When to worry - Mayo Clinic

    Oct 10, 2024 · Stool color is generally influenced by what you eat as well as by the amount of bile — a yellow-green fluid that digests fats — in your stool. As bile travels through your digestive tract, it is …

  2. Color blindness - Diagnosis and treatment - Mayo Clinic

    Jan 10, 2025 · Diagnosis If you have trouble seeing certain colors, an eye care professional can test for a color deficiency. Testing likely involves a thorough eye exam and looking at specially designed …

  3. Albinism - Symptoms and causes - Mayo Clinic

    Dec 13, 2023 · Eye color can range from very light blue to brown and may change with age. With albinism, the colored parts of the eyes, called the irises, usually don't have enough pigment. This …

  4. Urine color - Symptoms and causes - Mayo Clinic

    Oct 11, 2025 · Overview Regular urine color ranges from clear to pale yellow. But certain things can change the color. Foods such as beets, blackberries and fava beans can turn urine pink or red, for …

  5. Color blindness - Symptoms and causes - Mayo Clinic

    Jan 10, 2025 · Color blindness is an eye condition in which someone can't see the difference between certain colors. Though many people commonly use the term "color blind" for this condition, true color …

  6. Doppler ultrasound: What is it used for? - Mayo Clinic

    Jul 3, 2025 · Doppler ultrasound is a noninvasive test that can be used to measure the blood flow through your blood vessels. It works by bouncing high-frequency sound waves off red blood cells that …

  7. Phenazopyridine (oral route) - Side effects & dosage

    Mar 1, 2025 · This medicine may cause your urine to become a reddish-orange color and may stain clothing. Tell your doctor if you wear contact lenses. Your contact lenses could become discolored …

  8. Moles - Symptoms and causes - Mayo Clinic

    Dec 15, 2023 · Moles, also known as nevi, are a common type of skin growth that vary in color, shape and size. While most moles are most often harmless, they rarely can become cancerous.

  9. Melanoma pictures to help identify skin cancer - Mayo Clinic

    Dec 23, 2025 · Melanoma pictures for self-examination Melanoma is a serious form of skin cancer. It often can be cured if found early. These melanoma pictures can help show you what to look for. The …

  10. Actinic keratosis - Symptoms & causes - Mayo Clinic

    Dec 17, 2022 · Actinic keratoses vary in appearance. Symptoms include: Rough, dry or scaly patch of skin, usually less than 1 inch (2.5 centimeters) in diameter Flat to slightly raised patch or bump on …