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  1. Color blindness - Symptoms and causes - Mayo Clinic

    Jan 10, 2025 · Is it red or is it green? Learn more about what causes this common eye condition and how to tell whether you can distinguish between certain shades of color.

  2. Color blindness - Diagnosis and treatment - Mayo Clinic

    Jan 10, 2025 · Is it red or is it green? Learn more about what causes this common eye condition and how to tell whether you can distinguish between certain shades of color.

  3. 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 …

  4. 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 …

  5. Discolored semen: What does it mean? - Mayo Clinic

    Aug 20, 2025 · Red semen. Eating a lot of red-colored foods, such as beets, could cause red semen. Sometimes, red or red-streaked semen could mean blood is present. Possible causes …

  6. Red eye Causes - Mayo Clinic

    Feb 19, 2025 · This eye condition often looks much worse than it feels. Find out possible causes of inflamed, irritated eyes and when to call the doctor.

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

    Dec 23, 2025 · C: Color changes A spot with more than one color or uneven color may indicate cancer. Colors can include shades of tan, brown or black or areas of white, red or blue. …

  8. Rosacea - Symptoms and causes - Mayo Clinic

    Oct 17, 2023 · Rosacea (roe-ZAY-she-uh) is a common skin condition that causes flushing or long-term redness on your face. It also may cause enlarged blood vessels and small, pus-filled …

  9. Blood in urine (hematuria) - Symptoms and causes - Mayo Clinic

    6 days ago · Red urine isn't always caused by red blood cells. Some medicines can cause urine to turn red, such as a medicine called phenazopyridine that eases urinary tract symptoms. …

  10. Burns - Symptoms and causes - Mayo Clinic

    It may cause pain and redness or other changes in skin color. Second-degree burn, also called partial-thickness burn. This type of burn affects both the epidermis and the second layer of …