CRP Entzündung: what does this mean exactly?

CRP (C-reactive protein) is an acute-phase protein produced by the liver in response to inflammatory signals like interleukin-6. An elevated CRP level indicates systemic inflammation but is not specific to any single cause. Triggers include infections, tissue injury, chronic inflammatory diseases (e.g., rheumatoid arthritis), obesity, smoking, or even intense exercise. Normal levels are typically below 5 mg/L; higher values suggest acute or chronic inflammation. High-sensitivity CRP (hs-CRP) is used for cardiovascular risk assessment. Importantly, a single CRP value alone is not diagnostic – it must be interpreted in clinical context alongside other tests. Genetic variants (e.g., in the CRP gene) can influence baseline levels, a fact often overstated in consumer DNA tests. Home finger-prick tests measuring CRP provide a snapshot but lack the clinical integration needed for meaningful decisions. If CRP is very high (>50 mg/L), immediate medical evaluation is required. Evidence: human-strong (extensive studies, clinical standard).