C-Reactive Protein (CRP)

High C‑reactive protein (CRP) indicates active inflammation or tissue injury. It can rise with infections (especially bacterial), autoimmune flares, trauma, or chronic conditions like obesity and cardiovascular disease; very high levels suggest significant acute inflammation. Elevated CRP signals higher risk for complications and warrants further evaluation to find and treat the underlying cause, guiding therapy and monitoring response.

High C-reactive protein (CRP) commonly occurs with acute bacterial infections—sepsis, pneumonia, urinary tract infections, cellulitis, abscesses—and other severe systemic infections. Some viral infections (severe influenza, COVID‑19), invasive fungal infections, and parasitic infections can also raise CRP, though generally less than bacterial causes. CRP rises most with widespread or severe inflammation and helps monitor infection severity and treatment response.

CRP under 1 mg/L is low cardiovascular risk; 1–3 mg/L is moderate risk; >3 mg/L is high cardiovascular risk. For general inflammation, CRP below ~10 mg/L is near normal; 10–50 mg/L suggests mild–moderate inflammation or infection; values above ~100 mg/L are concerning for serious bacterial infection or severe inflammation. Interpret with symptoms and your clinician; repeat testing may be needed.

A high CRP (C‑reactive protein) is a marker of inflammation but not an emergency by itself. Very high levels (for example >100 mg/L) or a rising CRP with fever, severe pain, breathlessness, low blood pressure, confusion, or rapid heart rate can indicate serious infection or sepsis and need urgent care. Mild-to-moderate elevations warrant evaluation by your clinician to find the cause and guide treatment.

CRP won’t fall instantly, but you can begin reducing inflammation now: treat infections promptly (see a doctor), stop smoking and alcohol, hydrate, rest and sleep, reduce stress and start gentle exercise, eat anti‑inflammatory foods (omega‑3 rich fish, fruits, vegetables, whole grains), avoid processed foods and sugary drinks. For rapid control of severe inflammation, consult a clinician—prescription treatments (e.g., antibiotics, statins, or anti‑inflammatories) may be needed. Seek urgent care for severe symptoms (high fever, chest pain).

If your CRP is high, avoid smoking, excessive alcohol, and a diet high in processed foods, refined sugars, saturated and trans fats. Limit ultra‑processed snacks and sugary drinks, and reduce sedentary behavior and chronic stress. Avoid delaying medical evaluation—untreated infections or inflammatory conditions must be diagnosed and managed. Don’t self‑medicate long‑term with over‑the‑counter anti‑inflammatories without medical advice.