Pharyngeal swab examination clinically used for pharyngeal tonsils, oral cavity or both sides of the jaw arch parts of the infectious, inflammatory diseases of the laboratory examination, the operation process of the method should be aseptic operation, the specific methods are as follows: 1, the patient first rinsed with water to clean the mouth after the mouth, open the mouth to make ah sound; 2, followed by the examiner immediately use a long pharyngeal swabs cotton swabs, wiping the patient’s pharynx, bilateral frontal arches, as well as the tonsils. The localized secretions were also taken out and put into the tube of the pharyngeal swab, which was sent to the examination department for testing. The secretions taken from the pharyngeal swab can be examined microbiologically, such as for bacteria, viruses, or molecular biology. When the pharyngeal swab is taken, the patient may experience clinical symptoms such as nausea or discomfort in the throat. However, this symptom can subside quickly after the swab is taken, so patients should not be nervous and cooperate actively during the examination.