Laryngoscopy includes indirect laryngoscopy, electronic fiberoptic laryngoscopy, etc. It mainly examines the laryngopharynx and larynx. Indirect laryngoscopy is a more commonly used and simple laryngoscopy, which can sequentially examine the root of the tongue, epiglottic valley, epiglottic lingual surface, posterior and lateral walls of the pharynx, epiglottic laryngeal surface, arytenoid region, vocal cords, subglottic area and other areas. Observe for mucosal injury, foreign bodies, and normal vocal cord movement. If indirect laryngoscopy is not satisfactory, electronic fiberoptic laryngoscopy can be performed. Its advantages are that it is bendable, brighter and has a larger field of view, and it can also perform surgical operations such as biopsy, polyp removal and foreign body removal. If you are not feeling well, it is recommended that you consult a doctor in time and choose the appropriate examination program according to your situation under the guidance of your doctor.