Healthy plasma is typically pale yellow in color. This color is due to the presence of bilirubin, a yellow pigment produced during the breakdown of red blood cells.
Why is Plasma Yellow?
- Bilirubin: Bilirubin is a breakdown product of heme, a component of hemoglobin in red blood cells. When red blood cells age or become damaged, they are broken down by the spleen, releasing bilirubin into the bloodstream.
- Liver Processing: Bilirubin is then transported to the liver, where it is conjugated and excreted in bile.
- Normal Levels: A small amount of bilirubin remains in the blood, giving plasma its pale yellow color.
What if Plasma is Not Yellow?
If plasma is a different color, it could indicate a health issue. Here are some examples:
- Red: Hemolysis (destruction of red blood cells) can cause red-colored plasma.
- White: A milky appearance can indicate high levels of lipids (fats) in the blood.
- Dark Yellow or Orange: High bilirubin levels, as seen in jaundice, can cause a darker yellow or orange plasma.
Note: It is important to consult a doctor if you notice any unusual color changes in your plasma.
