When we have symptoms such as throat discomfort, foreign body sensation, difficulty in swallowing, hoarseness, etc., laryngoscopy is needed to argue the cause of the disease. Due to the deep part of the larynx and the complex physiological structure, the examination needs to be done with the help of some special methods. Laryngeal examination mainly includes external examination of the larynx, indirect laryngoscopy, direct laryngoscopy, fiberoptic laryngoscopy, laryngeal endoscopy, laryngeal dynamic microscopy, laryngeal electromyography, laryngeal function examination and laryngeal imaging examination. As there are more categories of laryngoscopy, how to choose laryngoscopy is also a serious test for doctors! Although there are many categories of laryngoscopy, the most commonly used and easiest examination method in the hospital clinic is indirect laryngoscopy, that is, placing the indirect laryngoscope in the oropharynx and observing the laryngeal image in the mirror, this examination method not only examines the larynx, but also observes part of laryngopharyngeal. 1. Indirect laryngoscopy can be examined to the root of the tongue, the lingual tonsils, the epiglottic valleys, the posterior laryngopharyngeal wall, the lateral wall of laryngopharyngeal, the lingual surface of the epiglottis and the free surface of the epiglottis. In the process of indirect laryngoscopy, you can let the patient make the sound of “clothes”, so that the epiglottis is lifted up, and at this time, you can see the epiglottis laryngeal surface, aryepiglottic folds, inter-arytenoid area, ventricular band and vocal folds and their closure; 3. Under normal circumstances, the larynx and laryngopharynx are symmetrical on both sides, the pyriform fossa is symmetrical, there is no fluid accumulation, and the mucosa is light and pale. There is no fluid accumulation, and the mucosa is light red. The vocal cords are white striped, when giving out clothes voice, the vocal cords are inwardly contracted and close to the midline, and when deeply inhaling, the vocal cords are outwardly extended to both sides respectively, and at this time, the cartilaginous rings in the subglottic area or part of the trachea can be seen through the vocal folds. During laryngoscopy, it is important to pay attention to the color of the mucosa of the larynx and the presence of congestion, edema, thickening, ulceration, scarring, neoplasm, or foreign body retention, etc., and to observe the activity of the vocal cords and the arytenoid cartilage. If it is difficult to take indirect laryngoscopy, then there are other laryngoscopy methods, such as direct laryngoscopy, fiberoptic laryngoscopy, laryngeal endoscopy, laryngeal dynamoscopy, laryngeal electromyography, laryngeal function test and laryngeal imaging test and so on. All in all, it is necessary to find the specific lesions in the larynx as soon as possible, so that corresponding treatment measures can be taken to make it return to normal as soon as possible, so as not to affect the normal life and work.