Generally when appendicitis is considered, a routine blood test will be done to look at the type of white blood cells. Normally, 4000/ μL-10000/μL is the normal value, if the total number of white blood cells is higher than 10000/μL, it suggests that there is inflammation. If the total number of white blood cells is higher than 10,000/μL, it suggests inflammation. In addition, it is necessary to look at the classification of white blood cells, mainly to see the proportion of neutrophils, the normal value is 50%-70%, if it is more than 70%, the proportion of neutrophils is predominant, which is also a sign of inflammation. Other tests include CRP, which is also an indicator of inflammation. What tests can be done to detect, appendix is not mainly rely on the blood test report to determine whether there is appendicitis or not, but with clinical symptoms, signs, usually, the typical will show metastatic right lower abdominal pain, the right lower abdomen has a fixed point of pressure, combined with the blood routine of the white blood cells, neutrophils increased proportion, can be considered to be appendicitis. At present, in hospitals with better technical conditions, color ultrasound can see the swollen appendix, so that the diagnosis can be an additional basis.