Platelets (PLT)
Tiny cells that clump together to form blood clots and stop bleeding. Critical for wound healing.
Typical normal range
150,000–400,000 /µL
If high ↑
Thrombocytosis: iron deficiency, infection, inflammatory disease
If low ↓
Thrombocytopenia: bleeding risk, autoimmune disease, bone marrow suppression
What is a normal Platelets level?
A typical reference range is 150,000–400,000 /µL. Ranges vary between laboratories and can depend on age and sex, so compare your result with the range printed on your own report.
What does a high Platelets level mean?
Thrombocytosis: iron deficiency, infection, inflammatory disease. A single result rarely gives a diagnosis on its own; your doctor will interpret it alongside your symptoms and other tests.
What does a low Platelets level mean?
Thrombocytopenia: bleeding risk, autoimmune disease, bone marrow suppression. Your doctor will interpret it alongside your symptoms and other tests.
About the Complete Blood Count (CBC)
A complete blood count looks at the cells in your blood: red cells that carry oxygen, white cells that fight infection, and platelets that help blood clot. It is one of the most commonly ordered tests and is often part of a routine check-up.
See your own Platelets result explained
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Analyze my results freeRelated markers in the Complete Blood Count (CBC)
Medical disclaimer: Reference ranges vary by laboratory, age, sex, and clinical context. This page is for educational purposes only and is not a diagnosis. Always discuss your results with a qualified healthcare professional.