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Inflammation · Marker 01

hs-CRP · High-sensitivity C-Reactive Protein

hs-CRP is a quiet inflammation signal made by the liver. It rises when your body is dealing with something, sometimes obvious, sometimes not.

Educational, never diagnosticReviewed Apr 12, 2026

Common reference range

0–1 mg/L

Worth watching
Above 3 mg/L
Population median
1.6 mg/L
Units
mg/L

Your record always keeps the range printed on the report the result came from, which can differ from the range above.

Why it matters

What hs-CRP tells you.

Long-running, low-grade inflammation is the soil that most chronic disease grows in. A persistently elevated hs-CRP is a useful early warning.

C-reactive protein rises in response to interleukin-6 signaling, the body's general-purpose inflammation language. The high-sensitivity assay can distinguish the chronic, low-grade signal that matters for cardiometabolic risk from the acute spikes that matter for infection.

Persistently elevated hs-CRP in an otherwise healthy patient is a quiet warning. It often precedes the labs that follow it: rising ApoB, rising fasting insulin, declining HRV.

What the record reads

The direction, not one number.

Your hs-CRP trend, read alongside sleep, body composition, and recovery signals.

hs-CRP · mg/L · six results

Illustrative series

Once you file two results, the record compares them to each other rather than to a population average, and names the report each value came from.

What can influence it

The things that move hs-CRP.

In rough order of effect, and read alongside your own history rather than on their own.

  1. 01

    Visceral adiposity

    Adipose tissue itself is an inflammatory organ.

  2. 02

    Sleep quality

    Even one disrupted week measurably elevates the signal.

  3. 03

    Periodontal health

    An overlooked source of chronic inflammatory load.

  4. 04

    Recent infection

    Can confound for 4, 6 weeks. Re-test before drawing conclusions.

Daily things that show up here

  • Protect sleep consistently
  • Lose visceral fat slowly and sustainably
  • Treat gum disease and recent infections
  • Re-test after illness, wait 4, 6 weeks

In your record

What happens when a hs-CRP result arrives.

The same four steps for every result, whether you upload a report or type a value in by hand.

  1. 01

    Filed to its date

    The value is stored against the day it was drawn, with the report it came from kept alongside it.

  2. 02

    Named and normalized

    High-sensitivity C-Reactive Protein is recognised as one measure, so the same marker from two labs joins one series.

  3. 03

    Read in plain language

    You see what it measures, whether it sits in the printed range, and what usually moves it.

  4. 04

    Shared only if you say so

    A clinician sees this result when you grant scoped, expiring access, and the view is logged.

This page is educational. It does not diagnose, and it does not replace a conversation with a clinician who can see your history.

Where to go next

  • Start with one report

    Upload a single lab report and hs-CRP is filed to its date, named and read back in plain language.

    Create my free record

  • Find someone to read it with

    The directory opens filtered to clinicians who work with inflammation markers.

    Verified clinicians

  • Read the evidence

    The reading list opens searched for hs-CRP, with every study linked back to its source.

    Studies on hs-CRP

References

Where this comes from.

  1. Ridker PM. A Test in Context: High-Sensitivity C-Reactive Protein. J Am Coll Cardiol. 2016;67(6):712-723. DOI

Reviewed by Dr. Aaron Chen, MD · Cardiology · Last reviewed Apr 12, 2026