Is Platelet count 420 normal, high or low? What does Platelet count level 420 mean?

📅 Medical Review Date: January 28, 2026

Your Platelet count level of 420 is a Normal Platelet count level.

Normal Platelet count levels may indicate underlying health problems. The normal range is typically between 150 thou/uL and 450 thou/uL. If your levels are outside this range, it's important to speak with a healthcare provider. Consulting a doctor is recommended to determine the cause and appropriate next steps.

The normal Platelet count range for men is :150 - 450 thou/uL

Ideal values of Platelet count depending on age (male) :

Age	Ideal Platelet count value
<5 years	156.3
5-10 years	162.865
10-15 years	169.705
15-20 years	176.833
20-25 years	184.26
25-30 years	191.999
30-35 years	200.063
35-40 years	208.466
40-45 years	217.222
45-50 years	226.345
50-55 years	235.851
55-60 years	245.757
60-70 years	256.079
70-80 years	266.834
80-90 years	278.041
90-100 years	289.719
>100 years	301.887

*Ideal values are calculated based on our database of patient records

Get Advice via Email : Send us your blood test report, and our Platelet count experts will review it. You'll receive a detailed analysis and personalized treatment guidance via email within 12 hours. If you have additional blood test results besides Platelet count, please include those too—an accurate diagnosis often requires a full view of all abnormalities. Upload blood test report now

1,51,150

Total number of patients treated

A video message on the treatment of your normal Platelet count level

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Some examples of conditions that increase or decrease Platelet count levels include:

• Sepsis
• Platelets may be used up quickly in serious conditions, such as disseminated intravascular coagulation
• Bone marrow damage
• Inflammatory bowel disease (IBD)
• Viral infections such as mononucleosis

Receive world-class medical opinion about your normal Platelet count levels over email.Upload blood test report now

Normal range of Platelet count found among women :150-450 thou/uL

Ideal values of Platelet count depending on age (female) :

Age	Ideal Platelet count value
<5 years	156.489
5-10 years	163.259
10-15 years	170.322
15-20 years	177.69
20-25 years	185.377
25-30 years	193.396
30-35 years	201.762
35-40 years	210.49
40-45 years	219.596
45-50 years	229.096
50-55 years	239.007
55-60 years	249.346
60-70 years	260.133
70-80 years	271.386
80-90 years	283.126
90-100 years	295.374
>100 years	308.152

If you take a Platelet count blood test and the results are not in the normal range (150-450 thou/uL), your physician may recommend more tests to figure out the problem. You might also get this test if your physician thinks you have some other disease.

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How the Platelet count Test Is Done :

When your doctor orders a Platelet count test, it involves a straightforward blood draw to measure your Platelet count levels. A pathologist or lab technician will take a small sample of blood from a vein using a needle. Your Platelet count test results are usually available within a few hours.

Medical References

• Cleveland Clinic – Platelet Count (PLT): Normal Range, Test Results & Meaning
• MedlinePlus – Platelet Tests
• MedlinePlus – Platelet count