There are many causes of foreign body sensation in the throat, the main reasons are chronic pharyngitis, chronic nasopharyngitis, nasopharyngeal and adjacent parts of the tumor may cause foreign body sensation in the throat. 1. Chronic pharyngitis: there will be a variety of discomfort, such as foreign body sensation, burning sensation, dryness, itching, irritation and mild pain. As the back wall of the pharynx is often stimulated by thicker secretions, more frequent irritating coughs often occur in the morning, or the feeling that something is blocking. 2. Chronic nasopharyngitis: dryness of the nasopharynx, mucous secretion at the back of the nose, often wanting to cough it up or sucking up snot, resulting in a sense of foreign body in the throat. 3. Tumor of nasopharynx and neighboring organs: Tumor of nasopharynx and other parts of the body such as lung tumor, stomach cancer, esophageal tumor, etc. can also cause foreign body sensation in the throat. Foreign body sensation in throat may also be caused by tonsillitis, reflux pharyngitis, pharyngeal tumors, etc. You should go to professional hospitals to find out the cause of the disease and follow the doctor’s instructions.