The baby must be seen immediately after the tracheobronchial foreign body aspiration, and the child must be quickly sent to a hospital that is equipped to remove the foreign body from the trachea, paying attention to minimizing all kinds of stimulation during the visit, keeping quiet, avoiding violent crying and running, and closely observing vital signs to avoid asphyxia caused by the displacement of the foreign body. Upon arrival at the hospital, the otolaryngologist or pediatrician will examine and auscultate the child, finding asymmetric whistling sounds in the lungs bilaterally or diminished whistling sounds on one side, croup sounds, and tapping or fluttering sounds for a foreign body moving in the trachea. Depending on the condition, the doctor will choose CT (multi-layer spiral CT has a 99.8% accuracy rate for diagnosing tracheobronchial foreign bodies), X-ray, etc. Once the baby has been diagnosed, the baby is admitted to the hospital, vital signs are assessed, the anesthesiologist evaluates the baby, and the surgery is prepared. In general, bronchoscopy (rigid, bendable such as fiberoptic/electronic bronchoscopy) is performed under general anesthesia to remove the foreign body. The requirements for anesthesiologists at this time are relatively high; they must be responsible, experienced, and bold, and in fact they have been supporting the clinicians silently as behind-the-scenes heroes. For a few special and difficult to remove foreign bodies via bronchoscopy need to be removed via tracheotomy or transferred to thoracic surgery to remove foreign bodies via thoracoscopy or open heart surgery. Parents and friends should know something about tracheobronchial foreign body I. Epidemiology Tracheobronchial foreign body is one of the common emergency cases in children, early diagnosis and removal of foreign body is the key to reduce complications and mortality. In our country, tracheobronchial foreign bodies account for 7.9~18.1% of accidental injuries in children aged 0~14 years old, with a prevalence age of 1-3 years old, more males than females, more rural than urban, and more right-sided than left-sided. Most of them are exogenous foreign bodies, among which plant-based foreign bodies such as peanuts, melons and beans are the most common, and other rare ones such as plastic pen caps, whistles and so on. Children under 3 years of age have imperfect mastication function, incomplete swallowing coordination and laryngotracheal protection function, and like to play with objects in their mouths. Typical clinical manifestations: foreign body entry period (symptoms are obvious, violent choking and coughing, laryngeal wheezing, breath-holding, vomiting and lacrimation, spasmodic whistling difficulties, blue mouth and lips, hypoxia and even asphyxia); asymptomatic period (foreign body is temporarily quiescent, the length of time varies, if parents can not provide the exact history of foreign body inhalation, it is easy to miss or misdiagnosis); symptomatic re-emergence period (foreign body displacement stimulation or secondary infection, coughing aggravated, secretions (increased cough, increased secretions, inflammatory response of the whistle tract, fever, etc.); and complications (pneumonia, atelectasis, emphysema, asthma, bronchiectasis, lung abscess, etc.). Or for foreign body history that cannot be clarified, the possibility of foreign body aspiration should be considered when a sudden cough or chronic cough that is ineffective with aggressive anti-inflammatory therapy or recurrent disease, as well as recurrent pneumonia or lung abscess in the same area. For children’s tracheobronchial foreign bodies, we should pay attention to prevention and education for children and their guardians. Small objects are usually placed out of reach of children, and children should be taught not to hold foreign bodies in their mouths; when there is food in the mouth, do not tease children to cry and laugh, do not run and jump, and do not get sudden fright; children under 3 years old should eat as few nuts as possible; when foreign bodies are in the mouth, try to induce them to vomit, do not forcibly dig them out with your fingers; when there is high fever When vomiting, tilt the head to the side to avoid accidental aspiration. Once a foreign body is accidentally aspirated from the tracheobronchus, proper pre-hospital first aid is important to save the child’s life and relieve asphyxia: the upper abdominal pat and squeeze method (Heimlich method, for children older than 1 year, can be repeated 5-10 times) and the back pat method (for children under 1 year).