CRP40 is an indication of severe inflammation. Usually CRP stands for C-reactive protein the normal reference value is 0-10, so in the range of 0-30 indicates mild inflammation increase increase, if greater than 40, mostly belongs to the severe inflammatory infections, in the following several diseases is the most common occurrence. In severe bacterial infections, when the body is infected by bacteria or atypical pathogens, such as mycoplasma or chlamydia, the CRP increases exponentially, which is evidence that inflammation is replicating and infecting the body. CRP can also increase to 40 or more in cases of tumors or the development of serious immune system disorders, such as systemic lupus erythematosus or AIDS.