What does an elevated C-reactive protein indicate?

　　In general, an elevated C-reactive protein (CRP) level often indicates the presence of inflammation or infection in the body, and may also be associated with tissue damage or active chronic diseases. If concerned, it is advisable to seek medical consultation promptly. Detailed analysis is as follows:

　　Elevated CRP due to infection is relatively common. In bacterial infections such as pneumonia or urinary tract infections, CRP levels typically rise significantly within a short time, and the degree of elevation often correlates with the severity of the infection. In viral infections, CRP usually increases to a lesser extent, making it a useful reference for differentiating types of infection.

　　Non-infectious factors can also lead to abnormal CRP levels. Following tissue damage caused by trauma or surgery, CRP levels generally rise initially and then decrease during the healing process. In autoimmune diseases such as rheumatoid arthritis and systemic lupus erythematosus during active phases, CRP may remain persistently elevated. Additionally, chronic conditions like malignancies and cardiovascular diseases may also cause increased CRP levels.

　　An isolated elevated value cannot confirm a diagnosis; clinical symptoms and other test results must be considered together for accurate assessment. It is important to monitor bodily changes regularly. If symptoms such as fever or pain occur, or if CRP levels remain abnormal over time, timely medical evaluation is necessary to determine the underlying cause.