A sore throat that has been present for several months cannot rule out cancer, such as laryngeal cancer, but it may also be associated with non-neoplastic conditions such as pharyngitis, tonsillitis, and herpes pharyngitis. Among laryngeal tumors, laryngeal cancer may cause sore throat, but it is more likely to be related to the following diseases: 1. Pharyngitis: If the mucous membrane in the throat area is stimulated by inflammation, or factors such as frequent inhalation of irritating substances and excessive use of voice will lead to damage of mucous membrane in the throat area and induce sore throat. 2. Tonsillitis: the tonsils are stimulated by inflammation, which leads to the dysfunction of the tonsils and induces the symptoms of sore throat. 3. Herpes pharyngitis: the human body is infected by intestinal viruses, which will lead to inflammation of the mucous membrane of the upper respiratory tract, most of the symptoms are presented as itchy throat, and the pain phenomenon will occur when swallowing. If you have a sore throat, you should consult a doctor to diagnose the cause of the sore throat, and then treat it.