Pharyngeal follicular hyperplasia needs to take into account the causes of upper airway cough syndrome, inflammatory lesions and other adverse stimuli. 1. Upper airway cough syndrome: this disease takes chronic cough and sputum as the main clinical symptoms, and the patient will appear pharyngeal lymphoid follicle hyperplasia, pharyngeal mucosal congestion and other signs. 2. Inflammatory lesions: long-term repeated stimulation of inflammatory lesions is a common cause of pharyngeal follicular hyperplasia, but also the main reason, such as chronic pharyngitis, chronic laryngitis, chronic tonsillitis. 3. Other undesirable stimuli: Long-term smoking, alcoholism, eating too hot, etc., may lead to abnormal stimulation of the tissues in the throat area, causing pharyngeal follicular hyperplasia. Individuals who have been found to have pharyngeal follicular hyperplasia through examination are advised to consult the doctor in time to improve the relevant examinations and standardize the treatment.