If a single sore throat is not a proof of having throat cancer, you need to go to the hospital for consultation and clear diagnosis. Early symptoms of throat cancer usually show uncomfortable symptoms such as prolonged discomfort in the throat, persistent cough, blood in sputum and sore throat. So just having a sore throat does not prove to be a precursor of throat cancer. However, if the long-term pain and discomfort in the throat, you need to go to the hospital as early as possible to improve the laryngoscopy examination and make a clear diagnosis, so as to avoid delaying the treatment. Sore throat may also be caused by inflammation, such as acute pharyngitis, acute tonsillitis and so on. Or it may be caused by eating irritating food, excessive smoking, allergies and other conditions that cause a sore throat. Therefore, if you have a sore throat, you should not blindly diagnose it on your own. You should go to a regular hospital in time to get a clear diagnosis and then give standardized treatment.