The throat feels blocked by something, the cause of which is often due to chronic inflammation of the throat, or swelling in the throat, and may be affected by reflux pharyngitis and other causes. 1. Some chronic inflammatory diseases in the throat, such as chronic pharyngitis, chronic tonsillitis, etc., due to the long-term inflammatory stimulation of the site, resulting in local mucosal congestion, swelling, so the patient will often feel a sense of foreign body in the throat. 2. If there is some swelling in the throat, such as the common epiglottis cyst, there may be malignant tumors, such as laryngeal cancer, hypopharyngeal cancer and so on. Although patients have no conscious symptoms when the swelling is small, when it is large, it will affect the normal function of local tissues and cause foreign body sensation in the throat due to its occupying position. 3. Reflux pharyngitis can also induce this symptom, due to the reflux material stimulates the mucous membrane at the throat, some symptoms such as discomfort in the throat and difficulty in swallowing can appear. If you have acid reflux, heartburn and other typical manifestations, you should consider that it may be related to the cause of the disease. It is recommended to seek medical examination in order to get an accurate diagnosis.