When swallowing spit, the throat is a bit blocked, that is, the patient’s throat has a foreign body sensation, commonly caused by inflammation or swelling. 1. Inflammation of the throat: for example, bacterial infection produces inflammatory media stimulation of the throat, resulting in mucosal congestion and inflammation in the throat, resulting in tonsillar hyperplasia, acute pharyngitis, peritonsillitis, etc., will lead to foreign body sensation and other discomfort in the throat area, appearing to swallow spit when the throat is a little bit blocked. 2. Pharyngeal swelling: can also lead to a foreign body sensation in the throat, resulting in throat blockage when swallowing spit. The swelling can be divided into benign and malignant, benign swelling includes epiglottis cyst, pharyngeal papilloma and so on; malignant swelling such as laryngeal cancer, hypopharyngeal cancer and so on. It is recommended to go to regular hospitals for consultation and targeted treatment after clear diagnosis for the phenomenon of throat blockage when swallowing saliva.