Platelets (thrombocytes) are tiny cell fragments that help your blood clot and stop bleeding.
- Normal range (adults)
- 150–400 ×10⁹/L (150–400 ×10³/µL)
- Sample
- Blood
- Fasting
- Not usually needed
- Also called
- PLT, Platelet Count, Thrombocytes, PLT COUNT, Platelets Count
Platelet Count normal range
| Group | ×10⁹/LConventional units: US, South Asia | ×10³/µLSI units: UK, Europe, Australia, international |
|---|---|---|
| Adults | 150–400 | 150–400 |
Your report may use either unit system; labs in the Gulf often print both. Ranges also vary slightly between laboratories, so the range printed on your own report is the one to go by.
Why is the Platelet Count test done?
It is part of the Complete Blood Count. Doctors check it when someone bruises or bleeds easily, during fevers such as dengue, and before surgery.
What does a high Platelet Count level mean?
A high platelet count (thrombocytosis) is usually a reaction to something else in the body. Very high counts can raise the risk of clots.
Common causes
- Iron deficiency
- Infection or inflammation
- Recent surgery or removal of the spleen
- Recovery after blood loss
- Rarely, a bone-marrow disorder
Diet and lifestyle tips
- Treat the underlying cause, such as iron deficiency or infection
- Stay well hydrated
- Stop smoking and keep active to support healthy circulation
What does a low Platelet Count level mean?
A low platelet count (thrombocytopenia) makes bleeding more likely: easy bruising, nosebleeds, bleeding gums or small red spots on the skin.
Common causes
- Viral infections, especially dengue
- Medicines such as heparin or some antibiotics
- Immune thrombocytopenia (ITP)
- Liver disease or an enlarged spleen
- Heavy alcohol use
- Low B12 or folate
- Pregnancy (mild drop is common)
Diet and lifestyle tips
- Avoid alcohol
- Eat folate and B12 sources: leafy greens, beans, eggs, dairy, meat
- Avoid painkillers such as aspirin and ibuprofen unless your doctor approves
- During dengue, drink plenty of fluids and follow medical advice rather than home remedies
When should you see a doctor?
Seek urgent care if your count is very low (below about 50 × 10⁹/L) or you have unusual bleeding, black stools or blood in urine. Get any persistent abnormal result checked.
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This page is for general education and is not a diagnosis. Normal ranges differ between laboratories, so always compare your result with the reference range printed on your own report, and discuss abnormal results with your doctor.