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 …
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 …
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 …
7 fingernail problems not to ignore - Mayo Clinic
Jun 30, 2023 · Yellow nail syndrome In yellow nail syndrome, nails thicken and grow slower. This results in the nails turning a yellowish color. Nails affected by yellow nail syndrome might lack a cuticle and …
Tinea versicolor - Symptoms & causes - Mayo Clinic
Aug 11, 2025 · Tinea versicolor (TIN-ee-uh vur-si-KUL-ur) is a common skin infection caused by a fungus. The fungus causes patchy changes in skin color. The affected skin may look lighter or darker …
Melanoma pictures to help identify skin cancer - Mayo Clinic
Dec 16, 2023 · 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 …
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 of blood in …
Detox foot pads: Do they really work? - Mayo Clinic
Aug 15, 2024 · Toxins include heavy metals. When you peel off the pads in the morning, they may look darker or different in color. This change is supposed to show that toxins have been removed from …
Vitiligo - Symptoms & causes - Mayo Clinic
Feb 1, 2024 · Vitiligo (vit-ih-LIE-go) is a disease that causes loss of skin color in patches. The discolored areas usually get bigger with time. The condition can affect the skin on any part of the body. It can …
Melanoma - Symptoms and causes - Mayo Clinic
Dec 30, 2023 · Melanoma is a kind of skin cancer that starts in the melanocytes. Melanocytes are cells that make the pigment that gives skin its color. The pigment is called melanin. This illustration shows …