The precautions for laryngoscopy mainly include fasting before the examination, avoiding emotional stress, and informing the doctor of the disease history. 1. Fasting before the examination: laryngoscopy may cause slight discomfort during the operation, thus causing food reflux in the stomach, so it is best to follow the doctor’s advice and choose to fast for a short period of time before the examination. 2. Avoid emotional tension: patients should remain relaxed and avoid tension, most of the laryngoscopy is carried out in the outpatient clinic, so there is no need to be too nervous, so as not to affect the examination. 3. Inform the disease history: before laryngoscopy, the doctor will ask about the history of diseases, infectious diseases, etc. Patients should take the initiative to inform the doctor, so as not to lead to anesthesia allergy, as well as the phenomenon of cross-infection, especially high blood pressure, heart disease patients must be informed of the disease, so as not to give rise to adverse consequences. Laryngoscopy has many precautions, the patient should cooperate with the doctor’s operation, if there is discomfort or the existence of underlying diseases, should inform the doctor in a timely manner, so as not to lead to adverse consequences.