Sudden throat pain may be related to acute simple pharyngitis, acute tonsillitis, acute epiglottitis, etc., and need to be further differential diagnosis by the doctor. 1. Acute simple pharyngitis: often caused by viral and bacterial infections and stimulation of physical and chemical factors can also cause this disease. Generally, the onset of the disease is more acute, the first feeling of pharyngeal dryness, burning, roughness, coughing, followed by pharyngeal pain, mostly burning pain, and pharyngeal pain is more intense when empty throat. 2. Acute tonsillitis: due to bacteria and other pathogens infecting the tonsils, the main symptoms of acute tonsillitis. At the beginning, the sore throat is mostly on one side, and it can develop to the opposite side. The sore throat is aggravated by swallowing or coughing. If the pain is severe, it may lead to dysphagia. 3. Acute epiglottitis: when the epiglottis and surrounding structures are attacked by bacteria, viruses or harmful substances, it can cause inflammatory reaction, manifested as acute sore throat and swallowing pain. It is recommended that people with sudden throat pain go to the hospital in time to clarify the cause of the disease, and standardize the treatment under the guidance of the doctor, so as not to delay the condition to bring adverse effects on the body.