Is WBC 6.3 normal, high or low? What does White blood cell count level 6.3 mean?

📅 Medical Review Date: October 23, 2025

Your WBC level of 6.3 is a Normal WBC level.

Normal WBC levels may indicate underlying health problems. The normal range is typically between 4 thou/uL and 11 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 WBC range for men is :4 - 11 thou/uL

Ideal values of WBC depending on age (male) :

Age	Ideal WBC value
<5 years	4.252
5-10 years	4.52
10-15 years	4.805
15-20 years	5.108
20-25 years	5.43
25-30 years	5.772
30-35 years	6.136
35-40 years	6.523
40-45 years	6.934
45-50 years	7.371
50-55 years	7.835
55-60 years	8.329
60-70 years	8.854
70-80 years	9.412
80-90 years	10.005
90-100 years	10.635
>100 years	10.593

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

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Some examples of conditions that increase or decrease WBC levels include:

• Infections, most commonly caused by bacteria and some viruses, less commonly by fungi or parasites
• Bone marrow damage
• Overwhelming infections (e.g., sepsis)
• Inflammation or inflammatory conditions such as vasculitis or inflammatory bowel disease
• Myelodysplastic syndrome

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

Normal range of WBC found among women :4-11 thou/uL

Ideal values of WBC depending on age (female) :

Age	Ideal WBC value
<5 years	4.26
5-10 years	4.536
10-15 years	4.83
15-20 years	5.143
20-25 years	5.477
25-30 years	5.832
30-35 years	6.21
35-40 years	6.613
40-45 years	7.042
45-50 years	7.499
50-55 years	7.986
55-60 years	8.504
60-70 years	9.056
70-80 years	9.644
80-90 years	10.27
90-100 years	10.936
>100 years	10.89

If you take a WBC blood test and the results are not in the normal range (4-11 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 WBC Test Is Done :

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

Medical References

• MedlinePlus – White Blood Count (WBC)
• Cleveland Clinic – White Blood Cells: Types, Function & Normal Ranges
• MedlinePlus – Blood Count Tests