Inflammation of the throat can lead to pain in the throat, fever, difficulty in opening the mouth, etc. The impact of blood tests in medical examinations is still relatively large, especially for routine blood tests. Inflammation of the throat is usually caused by bacterial or viral infections of the throat, such as tonsillitis or acute pharyngitis. In bacterial infections, there are obvious changes in the blood count, which can lead to a significant increase in white blood cells, a significant increase in the percentage of neutrophils, a decrease in eosinophils, and a significant increase in C-reactive protein. In contrast, although leukocytes may not increase in viral infections, their eosinophil percentage increases significantly and their neutrophil percentage decreases significantly, and they may also cause mild abnormalities in liver and kidney function, but not beyond the range.