HPV is also clinically known as human papillomavirus, which can cause symptoms such as sore throat, throat discomfort, itchy throat, etc. Generally, after an incubation period of three to six months, about 1% of patients will develop pharyngeal neoplasm, also called pharyngeal papilloma. The swelling is associated with HPV strains 18 to 64 infection. Only a small percentage of subtypes cause papillomas. Most papillomas are naturally cleared by the body’s immune system in about six months and do not cause symptoms, and can be removed by laser or laser freezing when they appear.