Is WBC 13.55 high, normal or dangerous? What does White blood cell count level 13.55 mean?

📅 Medical Review Date: November 15, 2025

Your WBC level of 13.55 is a High WBC level.

A WBC level of 13.55 thou/uL usually means the body is fighting an infection or inflammation. It suggests the immune system is activated. High levels of WBC can cause fever, body aches, fatigue, sweating and chills depending on the underlying infection. This can be caused by bacterial or viral infections, stress, tissue damage or autoimmune disorders. Further tests are often needed to identify the cause and guide appropriate treatment.

High 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	4.054
5-10 years	4.109
10-15 years	4.165
15-20 years	4.221
20-25 years	4.278
25-30 years	4.336
30-35 years	4.395
35-40 years	4.455
40-45 years	4.515
45-50 years	4.576
50-55 years	4.638
55-60 years	4.701
60-70 years	4.765
70-80 years	4.83
80-90 years	4.895
90-100 years	4.961
>100 years	5.028

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

Misdiagnosis is more common than people think—and the consequences can be serious. Delayed treatment, unnecessary medication, or worse. If you want a second opinion on your blood work, one option is to upload it to a site like wholebodyprotocol.com, where world-class doctors review your results. They charge a small fee—around $90 (though you'll want to check the latest price as it fluctuates)—and email you a detailed report. With over 12 million people affected by misdiagnosis every year, that little bit of extra peace of mind can go a long way.

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

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	4.056
5-10 years	4.113
10-15 years	4.17
15-20 years	4.228
20-25 years	4.287
25-30 years	4.347
30-35 years	4.408
35-40 years	4.47
40-45 years	4.532
45-50 years	4.595
50-55 years	4.659
55-60 years	4.724
60-70 years	4.79
70-80 years	4.857
80-90 years	4.925
90-100 years	4.994
>100 years	5.064

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