Oropharyngeal foreign bodies: Oral foreign bodies are a common condition. The foreign body is mostly kept in tonsils, root of tongue or epiglottis valley, and it is often a tiny foreign body, which is easy to pierce into the tissues or hidden in the place that is not easy to find out. Symptoms vary depending on the type of foreign body and the site of penetration, and are often characterized by a tingling sensation in the throat that worsens with swallowing, avoiding rotation of the neck, and the patient being able to point out where the pain is located. Foreign body sensation in the throat is not a unique disease, but a combination of symptoms. It includes sensations of obstruction, pressure, lobar sensation, narrowing, dryness, burning, itching, ants, or other discomfort. Its causes are numerous and sometimes quite complex, organic or functional. Functional ones are also called pharyngeal allodynia, laryngeal allodynia, prurigo, pharyngeal neurosis, hysterical ball, etc. It is generally believed that the diagnosis of pharyngeal allodynia can only be made after the exclusion of organic lesions that produce pharyngeal foreign body sensation. Obstruction or dull pain behind the sternum when swallowing dry food: Obstruction or dull pain behind the sternum when swallowing dry food is one of the manifestations of esophageal cancer in early and middle stages. It is mainly progressive dysphagia, and in the early stage, it may only have discomfort or blockage when swallowing, and retrosternal pain or retrosternal discomfort when swallowing food.