2025年1月10日 · 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 …

2025年1月10日 · 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 …

2025年10月11日 · 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 …

2024年10月10日 · 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 …

2025年12月23日 · 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 …

2023年12月13日 · 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 …

2025年7月3日 · 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 …

2023年12月15日 · Moles, also known as nevi, are a common type of skin growth that vary in color, shape and size. While most moles are most often harmless, they rarely can become cancerous.

2023年6月30日 · 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 …

2024年2月1日 · 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 …