Foreign body sensation in throat for almost 1 year may be esophageal cancer, but the possibility is relatively small. It is commonly seen in benign lesions of pharynx such as chronic inflammation and other diseases, or reflux pharyngitis caused by esophagogastric diseases, and is rarely seen in pharyngeal tumors. 1. Foreign body sensation in throat for almost 1 year may be esophageal cancer, but the possibility is relatively small. Because early stage of esophageal cancer can cause foreign body sensation in throat, but the course of esophageal cancer progresses faster, after 1 year, the majority of patients will suffer from choking on food and pain behind the sternum. 2. Foreign body infection in throat is most common in benign lesions of pharynx: (1) chronic inflammation of the throat and other diseases, such as chronic pharyngitis, chronic tonsillitis and other diseases can cause lymphoid follicular hyperplasia in the throat to appear as a foreign body sensation in the throat, phlegm and other symptoms. Supraglottic neuritis, epiglottis cysts, food or air irritation can also appear in the throat with a foreign body sensation. (2) Reflux pharyngitis: such as esophagitis, esophageal diverticulum, cardia, gastritis and other diseases caused by gastric acid reflux stimulation of hypopharyngeal laryngeal mucous membrane, the patient will have a foreign body sensation in the throat, at the same time there are symptoms of acid reflux, heartburn, hiccups and so on. 3. Pharyngeal tumor: such as pharyngeal cancer, tonsil cancer and other pharyngeal tumors will appear foreign body sensation in throat at early stage, but patients with disease duration more than 1 year often have symptoms such as dysphagia, hoarseness and so on, and simple foreign body sensation is relatively rare. It is recommended to go to hospital for laryngoscopy and gastroscopy to rule out esophageal cancer if the foreign body sensation in the throat is almost 1 year old.