Haptoglobin
Haptoglobin is a protein that captures free hemoglobin released when red blood cells break down. When blood cells break down faster (hemolysis), haptoglobin is used up and its level drops.
| Rating | Range | What it means |
|---|---|---|
| Talk to a doctor | below 0.3 g/L | Low — possible hemolysis; consult. |
| Good | 0.3 – 2 g/L | Within the reference range. |
| Talk to a doctor | 2 g/L and above | Elevated — inflammatory context. |
Why it matters
Low indicates breakdown of red blood cells (hemolysis); high with inflammation.
If it’s low
Low haptoglobin indicates hemolysis — red blood cells break down faster than they are made. It is often accompanied by fatigue, jaundice, dark urine.
If it’s high
High haptoglobin is nonspecific — as an inflammatory marker it rises with infection/inflammation.
What to do
Haptoglobin is not a lifestyle marker. A low value (suspected hemolysis) belongs to a doctor — further work-up is needed (LDH, bilirubin, reticulocytes).
Read together with
LDH · Bilirubin (total) · Hemoglobin
This content is for information only and is not a substitute for medical advice. Talk to your doctor about your results.
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