Diameter greater than 1/4 inch (about 6 Dec 13, 2023 · Eye color can range from very light blue to brown and may change with age. Jan 10, 2025 · Color blindness is an eye condition in which someone can't see the difference between certain colors. Vitiligo affects Jan 10, 2025 · Color blindness is an eye condition in which someone can't see the difference between certain colors. Jul 3, 2025 · Doppler ultrasound is a noninvasive test that can be used to measure the blood flow through your blood vessels. A regular ultrasound uses sound waves to produce images, but can't show blood Dec 23, 2025 · Melanoma pictures for self-examination Melanoma is a serious form of skin cancer. These pictures are made of colored dots that have numbers or shapes in a different color hidden in them. This results in the nails turning a yellowish color. These melanoma pictures can help show you what to look for. Oct 11, 2025 · Overview Regular urine color ranges from clear to pale yellow. Jan 10, 2025 · Diagnosis If you have trouble seeing certain colors, an eye care professional can test for a color deficiency. The American Academy of Dermatology advises watching skin spots for: Asymmetry. It works by bouncing high-frequency sound waves off red blood cells that are circulating in the bloodstream. Vitiligo occurs when cells that produce melanin die or stop functioning. Normally, the color of hair and skin is determined by melanin. It often can be cured if found early. Feb 1, 2024 · Vitiligo (vit-ih-LIE-go) is a disease that causes loss of skin color in patches. 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. Color changes. This tube is the bile duct. But certain things can change the color. It can also affect hair and the inside of the mouth. The medical term for color blindness is known as color vision deficiency. This allows light to shine through the irises and makes the eyes extremely sensitive to bright light. With albinism, the colored parts of the eyes, called the irises, usually don't have enough pigment. Border irregularity. The discolored areas usually get bigger with time. Testing likely involves a thorough eye exam and looking at specially designed pictures. If the liver doesn't produce bile or if bile gets stuck in the liver, stool will be light colored or white. Because of this, very light-colored eyes may appear red in some lighting. The condition can affect the skin on any part of the body. Jul 3, 2025 · Stool gets its typical brownish color from bile, which flows into the small intestine during the digestive process. Nails affected by yellow nail syndrome might lack a cuticle and detach from the nail bed in places. Vitiligo affects . As bile travels through your digestive tract, it is chemically altered by enzymes, changing the colors from green to brown. An unusual urine color also can be a sign of a health problem. For instance, some urinary tract infections can turn urine 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. Jun 30, 2023 · Yellow nail syndrome In yellow nail syndrome, nails thicken and grow slower. Often the problem occurs in the tube that delivers the bile to the small intestine. And some medicines can give urine vivid tones, such as orange or greenish-blue. Foods such as beets, blackberries and fava beans can turn urine pink or red, for example. Yellow nail syndrome may be a symptom of a lung disease, such as chronic bronchitis.

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