CRP (C-reactive protein) is a non-specific marker of inflammation. Typical symptoms that may accompany elevated CRP include fever, fatigue, body aches, swelling, redness, and local warmth – depending on the underlying cause (e.g., infection, autoimmune disease, tissue injury). Importantly, CRP itself does not cause symptoms; it is a laboratory value. Many individuals with mildly elevated CRP (e.g., from chronic low-grade inflammation due to obesity, smoking, or stress) have no obvious complaints. A CRP test alone is insufficient for diagnosis; it must be interpreted in clinical context. Persistent elevation without clear cause warrants medical investigation for hidden inflammation. The evidence linking CRP to symptoms is strong (human-strong), but symptoms are non-specific. Use CRP as a screening tool, not a standalone diagnostic criterion.
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