Checking the vocal cords is not painful, but some people may have a sensitive gag reflex and may have nausea, or want to vomit during the examination, which can usually be done successfully. With a simple mirror, such as indirect laryngoscope or endoscope can not cooperate, you can also use electronic fiberoptic laryngoscope, its inserted from the nasal cavity, before the examination will spray some anesthetic to the nasal cavity, pharynx, in order to observe the overall situation of the larynx, such as the vocal cords, epiglottis, the back of the pharynx and the surrounding tissue mucosa, and there is no pain. In short, the various approaches are not very painful.