The pain on the right side of the throat is mostly caused by right tonsil peritonsillar abscess, right parapharyngeal abscess, right pharyngeal tumor and other diseases. 1. Right tonsil peritonsillar abscess, often secondary to acute tonsillitis on the right side, due to inflammation of tonsil crypts, especially the upper tonsil crypts, so that the crypts are blocked, where the bacteria or inflammatory products destroy the epithelial tissues, invade the depths, penetrate the tonsil peritonsillar membrane, and enter the peritonsillar space, resulting in tonsil peritonsillar abscesses. 2. Right parapharyngeal abscess: purulent inflammation of the right parapharyngeal space, cellulitis in the early stage, followed by abscess formation. The causative organism is mostly hemolytic streptococcus. It is mostly caused by purulent inflammation of neighboring tissues or organs, pharyngeal trauma and foreign body, trans-bloodstream and lymphatic system infection. 3. right pharyngeal tumor, when the right tonsil or pharyngeal side wall has a tumor, it will lead to throat pain, especially more obvious after swallowing. If the right side of throat hurts, it is recommended to consult the doctor in time and standardize the treatment after the diagnosis is clear.