Objective: To study on types, favorable factors, clinical characteristics and treatment result of pharyngitis to early diagnose, properly treat and prevent complications of pharyngitis. Patients and method: 171 patients with pharyngitis were studied by prospective and descriptive study with clinical interventions. Results: Age group from 16 - 30 occupied the highest rate 52.1%. Sex ratio male/female was 1/1.3. Acute pharyngitis 29.8%, chronic pharyngitis 68.5%. The most common favorable factor was sinusitis 37.4%. Common reason for visit was odynophagia 59.1%. Average disease duration of acute type was 6.9 ± 6.6 days, of chronic type was 4.1 ± 3.0 years. Fever showed rate 31.6%. Functional symptoms of pharyngitis including dysphagia 89.4%, odynophagia 73.1%, cough 40.9%, sputum 32.2%, itchy throat 28.7%. Common physical symptoms were red throat mucosa 71.3%, chronic lesions of throat mucosa 66.9%. Complication was otitis media 5.2%, broncho-tracheo-laryngitis 0.7%. Treatment results: recovery 46.2%, reduce disease 50.3%, no recovery 3.5%. Recovery showed the highest rate in acute pharyngitis (92.2%) and in chronic pharyngitis whose favorable factors were simultaneously treated (70.5%). Conclusions: Pharyngitis occurred the most frequently in young people, male and female sex. The most common type of pharyngitis was chronic. Recovery rate of acute pharyngitis was higher than chronic pharyngitis. Treatment of favorable factors made increase the recovery rate of chronic pharyngitis.