When eating fish, usually fishbone stuck in the throat is more common, this time will stimulate the throat to cause coughing phenomenon. Coughing may loosen the fishbone, which may fall out into the trachea, causing a violent cough. It is difficult to cough out the fishbone by yourself, and you need to go to the hospital to have it professionally treated by a doctor. In this case, the doctor will carry out fiberoptic bronchoscopy examination, as well as fiberoptic bronchoscopy to remove the fishbone operation. In addition, when swallowing a fishbone, it is possible for the fishbone to enter the esophagus, and if it is compressed in the esophagus, it may become lodged in the esophagus and penetrate the esophagus and then enter the trachea. This time is very dangerous, may puncture the small blood vessels leading to coughing up blood. If it pierces the artery, it may cause severe bleeding, leading to choking or even death.