Frequent sore throat may be caused by long-term eating spicy and irritating foods, chronic pharyngitis, herpes pharyngitis, reflux esophagitis, and penile syndrome. 1. Physiological factors such as eating spicy and irritating foods such as garlic, peppercorns and chili peppers for a long time or being in a hot and dry environment for a long time may lead to frequent sore throat. 2. Chronic pharyngitis: repeated infections of the mucous membrane of the throat lead to chronic inflammatory lesions of the mucous membrane, lymphoid follicular hyperplasia of the posterior pharyngeal wall, so there will be a sense of foreign body in the pharynx, burning sensation, pain. 3. Herpetic pharyngitis: repeated infections with pathogens such as coxsackievirus and enterovirus after the body’s immunity declines, leading to herpetic changes in the mucous membrane of the pharynx and symptoms such as fever and sore throat. 4. Reflux esophagitis: after the dysfunction of the lower esophageal sphincter, gastric acid and other gastric contents reflux into the throat, corroding the local mucous membrane, so it will have a sore throat. 5. Stenosis syndrome: congenital developmental abnormalities of the stenosis appear stenosis too long, abnormal orientation, abnormal morphology and other changes, resulting in pharyngeal compression and irritation, so often have a sore throat. Frequent sore throat may be related to a variety of factors, it is recommended to consult a doctor for a clear diagnosis, follow the doctor’s instructions for treatment.