Foreign body sensation in the throat without pain may be caused by physiological reasons, benign occupancy of the throat, psychological disorders and other reasons. 1. Physiological reasons: If the air of the long-term working environment is polluted by dust, chemical gases, etc., it may lead to situations such as a foreign body sensation in the throat. However, it is not painful. 2. Benign pharyngeal occupations: such as papilloma of the pharynx, epiglottis cyst, lymphoid tissue hyperplasia of the root of the tongue and other diseases, there is a foreign body sensation in the throat but no pain. 3. Psychological disorders: when the patient has excessive depression, anxiety and other psychological disorders, all may lead to the symptoms of foreign body sensation in the throat but not pain. Foreign body sensation in the throat should go to the hospital in a timely manner, after clarifying the cause of the disease under the guidance of the doctor to give appropriate treatment.