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 …
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 …
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 …
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 …
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 …
White stool: Should I be concerned? - Mayo Clinic
Jul 3, 2025 · Stool gets its typical brownish color from bile, which flows into the small intestine during the digestive process. If the liver doesn't produce bile or if bile gets stuck in the liver, stool will be light …
Riboflavin (oral route) - Side effects & dosage - Mayo Clinic
Dec 1, 2025 · Riboflavin may cause urine to have a more yellow color than normal, especially if large doses are taken. This is to be expected and is no cause for alarm. Usually, however, riboflavin does …
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 …
Carbon monoxide poisoning - Symptoms and causes - Mayo Clinic
Mar 28, 2025 · Overview Carbon monoxide poisoning occurs when carbon monoxide builds up in the blood. When too much carbon monoxide is in the air, carbon monoxide replaces oxygen in the red …