A foreign body in the larynx is a very dangerous condition that occurs mostly in young children under 5 years of age. The vocal fissure is a narrow part of the respiratory tract, and once a foreign body is accidentally inhaled, it can easily lead to laryngeal obstruction. If not rescued in time, death by asphyxiation can occur quickly. Most of the time, foreign objects are inhaled into the larynx because of sudden loud speech or crying and laughing while holding a foreign object in the mouth or eating. Large foreign bodies embedded in the laryngeal cavity immediately cause loss of voice, violent coughing, breathing difficulties, cyanosis, and even asphyxiation, and in severe cases, death by asphyxiation can occur within minutes. Smaller foreign bodies often have hoarseness, laryngeal wheezing, and paroxysmal violent cough. If the laryngeal mucosa is pierced by a sharp foreign body, there are symptoms such as sore throat, fever, painful swallowing and breathing difficulties. Teach young children not to cry and laugh loudly when eating, usually do not put needles, nails, coins and other objects in the mouth, pick out fish bones and broken bones in food, do not suck jelly food to avoid accidentally inhaling the respiratory tract.