A foreign body in the larynx is a foreign body that stays in the laryngeal cavity and a larger foreign body that cannot enter the trachea through the voice box and is embedded in the voice box. Common causes include sharp foreign bodies such as needles, bone fragments, metal pieces across the vocal canal, and larger foreign bodies such as peanuts, fava beans, small toy parts, etc. Most of them have a history of foreign body choking, such as crying, laughing, playing after containing something in the mouth, and suddenly coughing violently and causing accidental entry into the laryngeal cavity embedded in the vocal folds. The main symptoms are hoarseness, violent cough, pain, laryngeal wheezing; larger foreign bodies can cause breathing difficulties, lip cyanosis, or even asphyxia. The laryngeal examination may reveal a foreign body on, in, or under the voice box. Treatment: (1) Resuscitation of asphyxia: In case of obvious respiratory distress, emergency tracheotomy should be performed first, and after respiration has slowed down a little, the larger foreign body in the subglottis or glottis area should be removed upward from the tracheotomy. (2) Remove the foreign body as soon as possible: ① indirect laryngoscopic removal of foreign body: a few adult patients with foreign body located in the supraglottis area can be used 1% local mucosal surface anesthesia, under the indirect laryngoscope with laryngeal forceps to remove the foreign body. ② Direct laryngoscopic removal of foreign body: according to the location and shape of the foreign body, use appropriate laryngeal forceps to clamp the foreign body and adjust the appropriate orientation to make it removed smoothly. ③Extra-cervical incision to remove the foreign body: only in a few special cases, with respiratory distress, it is necessary to first tracheotomy, and then remove the foreign body from the tracheotomy after the respiratory distress is relieved. (3) Prevent infection and reduce the occurrence of laryngeal edema: appropriate antibiotics and steroid hormones can be given before and after foreign body removal to reduce inflammation and swelling and improve local symptoms.