The following symptoms may occur after swallowing a foreign body: 1. painful sensation in the pharynx, which may be caused by the foreign body piercing the mucous membrane of the pharynx, or the foreign body may induce local infection and pain. 2. foreign body sensation in the pharynx, which is mainly due to the presence of a foreign body, occurs when the patient swallows or speaks, and the foreign body sensation is relatively fixed and does not change. 3. some patients may swallow Some patients may feel uncomfortable when swallowing, eating, or swallowing due to the presence of a foreign body. If the foreign body is blocked in the esophagus, the patient will have a clear feeling of obstruction in the esophagus, resulting in the inability to swallow the food. 4.If the foreign body is stuck in the voice box or other places where the throat breathes, it can cause the patient to have dyspnea or inspiratory dyspnea and other related manifestations. 5.If the foreign body exists in the throat for a long time, it can induce localized suppuration, abscess and other related manifestations, and the patient can have If the foreign body penetrates the local blood vessels, it can lead to bleeding, especially in the esophagus, such as the aortic arch, which can lead to hemorrhage and life-threatening hemorrhage.