There is no relationship between pharyngitis and throat cancer, and even the most severe pharyngitis will not turn into cancer. The main symptom of chronic pharyngitis is a dry throat accompanied by an irritating cough or a relatively sticky secretion. As for throat cancer, the symptoms are different depending on the location. For example, tumors growing on the vocal cords will have gradually worsening hoarseness and breathing difficulties at a later stage. If the tumor grows around the pear-shaped fossa, patients will have gradually increasing swallowing pain and difficulty in swallowing. For tumors growing around the epiglottis, there are no special symptoms in the early stage, and most patients will have foreign body sensation. If there is a family history of this, you need to go to the hospital regularly for examination, early detection and early treatment.