Many diseases can cause foreign body sensation in the throat, including diseases of the nasopharynx and throat, diseases of adjacent organs, and systemic diseases.
For example, acute and chronic inflammation or tumor of the nasopharynx and throat, some diseases of the upper gastrointestinal tract, such as gastroesophageal reflux pharyngitis, gastritis, esophagitis, gastric cancer and esophageal tumor, and systemic diseases such as iron deficiency anemia, hypothyroidism, menopausal syndrome, diabetes mellitus, hypertensive heart disease, etc. In addition, anxiety and tension, hysteria can also lead to foreign body sensation in the throat.