c-reactive protein is an acute time-phase reactive protein. A high c-reactive protein level of 83 indicates inflammation in the body, suggesting that there may be bacterial infections, certain autoimmune diseases, and less likely viral infections. 1. Bacterial infection: in bacterial infection, the level of c-reactive protein is more than 50mg/L, and it can be as high as 500 mg/L in gram-negative bacterial infection, so the elevation of c-reactive protein 83 suggests that there may be bacterial infection in the body. 2. Viral infections: c-reactive protein levels in viral infections usually do not exceed 50 mg/L. Therefore, a high c-reactive protein level of 83 is unlikely to indicate a viral infection. 3. Autoimmune disease: c-reactive protein level fluctuates greatly during the active phase of autoimmune disease, and can be mildly or significantly elevated. Therefore, a high c-reactive protein level of 83 may also indicate the presence of autoimmune disease. The c-reactive protein level in the blood can reflect the severity of the disease to a certain extent, but there are many reasons leading to the elevation of c-reactive protein level, so there is no diagnostic significance, and you need to go to the hospital in a timely manner to clarify the cause, so as not to delay the disease.