
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 …
Melanoma pictures to help identify skin cancer - Mayo Clinic
Dec 22, 2025 · 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 …
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 …
大便的颜色:什么时候需要担心 - 妙佑医疗国际
Feb 21, 2025 · Learn more about services at Mayo Clinic.
色盲 - 症状与病因 - 妙佑医疗国际
Apr 23, 2025 · 眼睛具有复杂且紧凑的结构,直径约为 1 英寸( 2.5 厘米)。眼睛会接收数百万条关于外界的信息,然后交由大脑迅速处理。
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 …
尿液颜色 - 症状与病因 - 妙佑医疗国际
Oct 11, 2025 · 概述 正常的尿液颜色是透明到淡黄色。但某些因素会改变尿液颜色。 例如,某些食物(如甜菜、浆果和蚕豆)会使尿液变粉或变红。有的药物也会使尿液呈现鲜亮色调,如橙色或蓝绿色。 …
Birthmarks - Mayo Clinic
Jan 25, 2024 · Color ranges from pink or light brown to deep maroon. It grows as the child grows. Most often, a port-wine stain appears on the face, but it can affect other areas. In adulthood, the involved …
7 fingernail problems not to ignore - Mayo Clinic
Jun 30, 2023 · Nail pitting is when small round depressions or notches appear in the nails. It's common in people who have skin disorders such as psoriasis and eczema. Nail pitting also may be related to …