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- Color blindness - Symptoms and causes - Mayo Clinic
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 blindness — in which everything is seen in shades of black and white — is rare The medical term for color blindness is known as color vision deficiency
- Color blindness - Diagnosis and treatment - Mayo Clinic
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 pictures These pictures are made of colored dots that have numbers or shapes in a different color hidden in them
- Urine color - Symptoms and causes - Mayo Clinic
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 example And some medicines can give urine vivid tones, such as orange or greenish-blue An unusual urine color also can be a sign of a health problem For instance, some urinary tract infections can turn urine
- Stool color: When to worry - Mayo Clinic
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 chemically altered by enzymes, changing the colors from green to brown
- Albinism - Symptoms and causes - Mayo Clinic
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 allows light to shine through the irises and makes the eyes extremely sensitive to bright light Because of this, very light-colored eyes may appear red in some lighting
- Doppler ultrasound: What is it used for? - Mayo Clinic
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 are circulating in the bloodstream A regular ultrasound uses sound waves to produce images, but can't show blood
- Melanoma pictures to help identify skin cancer - Mayo Clinic
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 American Academy of Dermatology advises watching skin spots for: Asymmetry Border irregularity Color changes Diameter greater than 1 4 inch (about 6
- White stool: Should I be concerned? - Mayo Clinic
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 colored or white Often the problem occurs in the tube that delivers the bile to the small intestine This tube is the bile duct
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