CRP (C-reactive protein)

C-reactive protein (CRP) is a substance produced by the liver in response to inflammation in the body. When there's an infection, injury, or chronic disease, CRP levels in the blood increase as part of the body's immune response. A blood test measuring CRP helps healthcare providers evaluate the presence and intensity of inflammation, which can be useful for diagnosing conditions like infections, autoimmune disorders, or monitoring overall health. Elevated CRP indicates inflammation but does not specify the cause; further tests are often necessary to determine the underlying issue.