The pain of doing pneumoscopy, pneumoscopy also refers to the examination of bronchoscopy, patients usually have obvious discomfort as well as fear. When the bronchoscope passes through the throat, especially the vocal folds, there is often obvious choking, nausea, sore throat and other discomforts, and the patient has obvious chest tightness and shortness of breath at this time, and some of the patients also have a sense of suffocation, and sometimes it can also induce the patient to have panic attacks and palpitations. For patients with chronic lung disease, can also appear dyspnea, a few serious cases, can induce patients to angina pectoris, myocardial infarction, etc., and chest pain, chest tightness and other symptoms. In addition, after bronchoscopy, patients can often have sore throat, hoarseness, hemoptysis, fever and other adverse reactions. Therefore, before doing bronchoscopy, it is necessary to give local anesthesia to the throat, and sometimes it is also possible to perform painless bronchoscopy with general anesthesia to alleviate the patient’s pain.