Sore throat from swallowing may be related to acute pharyngitis, acute tonsillitis, fanshang pharyngitis and other causes. 1. Acute pharyngitis: due to bacterial and other pathogens infecting the pharyngeal mucosa, mucosal congestion and edema can occur, and the action of swallowing can stimulate the pharyngeal mucosa, resulting in paroxysmal or persistent pain during the swallowing action. 2. Acute tonsillitis: due to pathogen infection such as beta-hemolytic streptococcus, pharyngeal pain and other symptoms can occur, and the pain can be exacerbated when swallowing. 3. Fanshuang pharyngitis: also known as ulcerative membranous pharyngitis and ulcerative tonsillitis, it is a kind of subacute tonsillitis infected by Clostridium difficile and Fanshuang spirochete. The main manifestation is sore throat, usually unilateral. It is recommended that those who have a sore throat from swallowing go to the hospital in a timely manner to clarify the cause of the disease and standardize the treatment under the guidance of the doctor.