Magno

Inflammation

CRP on TRT

What the number means, why it moves on a protocol, and how it sits with related markers.

Updated 2026-11-08 · Part of the Magno guides

What it is

High-sensitivity CRP is the general inflammation marker. It rises with infection, injury, body fat, poor sleep and hard training, and it adds to cardiovascular risk when it stays up.

The range

How to read the lab range

Under 1 mg/L is low risk, 1 to 3 average, above 3 high. Above 10 is usually an infection or injury, not a lifestyle number.

Why it moves on a protocol

How Magno reads it

Magno keeps every test on one line, against your lab's range, with the change since last time. Pro explains it in plain words. Get Magno for iPhone.

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Drop your lab PDF or a photo and get every marker explained in plain words. Free, no account, your file never leaves your browser. Track it in the iPhone app to see the change since your last test.

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Questions people ask

CRP 4 after a hard week of training?

Common. CRP spikes after big sessions, so a result drawn after a hard week reads higher than one after a few easy days.

Related markers

Not medical advice

This explains what the number is and why it moves. It is not medical advice; decisions belong to you and your clinician.