Yes, humans can have yellow eyes, but it's usually a sign of an underlying medical condition rather than a natural variation.
Why Eyes Appear Yellow: Jaundice
The yellowing of the eyes, specifically the sclera (the white part of the eye), is called jaundice. Jaundice occurs when there's too much bilirubin in the blood. Bilirubin is a yellow pigment produced when red blood cells break down. Normally, the liver processes bilirubin, and it's then excreted from the body.
Causes of Yellow Eyes (Jaundice):
Several conditions can cause an increase in bilirubin levels, leading to jaundice and yellow eyes. These include:
- Liver problems: Conditions like hepatitis, cirrhosis, and liver cancer can impair the liver's ability to process bilirubin.
- Gallbladder or Bile Duct Issues: Gallstones or other blockages in the bile ducts can prevent bilirubin from being excreted properly.
- Hemolytic Anemia: This occurs when red blood cells are destroyed faster than the body can remove them, leading to an overproduction of bilirubin.
- Certain Infections: Some infections can disrupt the liver's function.
- Medications: Certain medications can cause liver damage or interfere with bilirubin processing.
- Gilbert's Syndrome: A genetic disorder that affects how the liver processes bilirubin. It often causes mild jaundice.
What to Do If You Notice Yellow Eyes:
If you notice that your eyes are yellow, it's crucial to consult a doctor immediately. Jaundice can be a symptom of a serious medical condition that requires prompt diagnosis and treatment. The doctor will perform tests to determine the underlying cause and recommend the appropriate course of action.
Summary:
Yellow eyes are generally not normal and indicate a health issue related to bilirubin levels, often involving the liver, gallbladder, or red blood cell breakdown. Seek medical attention if you notice this symptom.
