Blood test

Low CRP level in the blood

Blood test
Low CRP level in the blood
Last update: 12/05/2021

What is a low CRP called?

  • Low C-Reactive Protein (CRP)

What is the normal CRP level in the blood?

If you need to know which are the C-Reactive protein reference ranges or you require more information about the role of C-Reactive protein in the blood, you can visit normal C-Reactive protein level in the blood

What does a low CRP in a blood test mean?

A low C-reactive protein (CRP) value in a blood test have no value for diagnosis. CRP is virtually absent from the blood of healthy persons and increases when there is inflammation. Therefore, values near zero only show absence of inflammation or erroneous reading.

  • Mild CRP decrease (0 - 0.068 mg/dl in adults):

    Such a low CRP level is not common in blood tests because the sensitivity of measuring devices does not usually reach the required precision. Anyway, it has no diagnostic meaning.

Which factors can reduce the CRP?

There are some circumstances and drugs than can reduce your CRP:

  • Alcohol
  • Physical exercise
  • Weight loss
  • Drugs
    • Nonsteroidal anti-inflammatory drugs (NSAIDs)
    • Statin
      • Atorvastatin
      • Simvastatin
    • Niacin

Which diseases can reduce your CRP?

There is no disease specific for a low C-Reactive Protein (CRP) in the blood.

What can I do to increase the CRP level in the blood?

C-reactive protein (CRP) close to zero may be considered positive. It means no sign of inflammation in the body. Therefore, no action is necessary to increase the CRP level.

Where can I find more information about CRP level in the blood?

You can visit our pages about:

Which values are considered a low CRP level in the blood?

The following values are considered to be above the normal range:

IMPORTANT: These levels are expressed in mg/dl. They are an example of a healthy man of about 40 years old with no known disease and not taking any medication. The ranges can be different depending on the laboratory or on your personal circumstances.

C-Reactive protein
Mild CRP decrease
0.067 mg/dl0.066 mg/dl0.065 mg/dl0.064 mg/dl0.063 mg/dl0.062 mg/dl0.061 mg/dl0.06 mg/dl
0.059 mg/dl0.058 mg/dl0.057 mg/dl0.056 mg/dl0.055 mg/dl0.054 mg/dl0.053 mg/dl0.052 mg/dl
0.051 mg/dl0.05 mg/dl0.049 mg/dl0.048 mg/dl0.047 mg/dl0.046 mg/dl0.045 mg/dl0.044 mg/dl
0.043 mg/dl0.042 mg/dl0.041 mg/dl0.04 mg/dl0.039 mg/dl0.038 mg/dl0.037 mg/dl0.036 mg/dl
0.035 mg/dl0.034 mg/dl0.033 mg/dl0.032 mg/dl0.031 mg/dl0.03 mg/dl0.029 mg/dl0.028 mg/dl
0.027 mg/dl0.026 mg/dl0.025 mg/dl0.024 mg/dl0.023 mg/dl0.022 mg/dl0.021 mg/dl0.02 mg/dl
0.019 mg/dl0.018 mg/dl0.017 mg/dl0.016 mg/dl0.015 mg/dl0.014 mg/dl0.013 mg/dl0.012 mg/dl
0.011 mg/dl0.01 mg/dl0.009 mg/dl0.008 mg/dl0.007 mg/dl0.006 mg/dl0.005 mg/dl0.004 mg/dl
0.003 mg/dl0.002 mg/dl0.001 mg/dl0 mg/dl    
Medically reviewed by our Medical staff on 12/05/2021


  • Concise Book of Medical Laboratory Technology: Methods and Interpretations. 2nd Edition. 2015. Ramnik Sood. ISBN: 978-93-5152-333-8. Pag. 650.
  • A Manual of Laboratory and Diagnostic Test. 9th edition. Frances Fischbach. Marshall B. Dunning III. 2014. Pag 624. ISBN-10: 1451190891.
  • Laboratory tests and diagnostic procedures with nursing diagnoses (8th ed), Jane Vincent Corbett, Angela Denise Banks, ISBN: 978-0-13-237332-6, Pag. 365.
  • UptoDate: Acute phase reactants. Irving Kushner. Disponible en:

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