c-reactive protein is produced by the liver, and low c-reactive protein suggests that the synthesis function of the liver is reduced. In fact, clinically low c-reactive protein often has no clinical significance and does not require further diagnosis and treatment, while significantly elevated c-reactive protein has clinical significance. Because c-reactive protein is an acute phase response protein synthesized by the liver, when c-reactive protein is significantly elevated, it often suggests that the body has an acute stress state, such as trauma, surgery, rheumatoid immune diseases, infections, etc., can lead to a significant increase in c-reactive protein, and c-reactive protein elevation is proportional to the severity of the disease. the higher the c-reactive protein, suggesting that the disease is more serious. The higher the c-reactive protein, the more severe the disease. c-reactive protein can be used to monitor the effect of treatment.