Chronic pharyngitis is a chronic inflammation of the pharyngeal mucosa. The main clinical manifestations are discomfort in the pharynx, dryness, foreign body sensation or mild pain, dry cough, nausea, dark red pharynx congestion, and lymphatic follicles visible in the posterior pharyngeal wall. In patients with chronic pharyngitis, there is often clearing noise action and spitting white mucus because of increased pharyngeal secretions. The most common disease that bubbles mucus in the throat is chronic pharyngitis, so what is the disease diagnosis of chronic pharyngitis? 1, medical history: often have a history of recurrent episodes of acute pharyngitis, or due to nasal disease long-term open-mouth breathing and excessive alcohol and tobacco, dry bad air, dust and irritating gas pollution, etc. 2, symptoms: pharyngeal discomfort, or pain, or itching, or dryness, burning, smoky, foreign body sensation; irritating cough, coughing up secretions in the morning, or even vomiting. The duration of the disease is more than 2 months, often due to cold, flu, fatigue, talkative and other causes of symptoms 3, examination: chronic congestion in the pharynx, aggravated. Dark red, or dendritic congestion; posterior pharyngeal wall lymphatic follicle hyperplasia, or pharyngeal lateral cord enlargement; pharyngeal mucosa hyperplasia hypertrophy, or dry, atrophy, thinning, with secretions attached. The diagnosis can be made with each of the above symptoms and one or more of the above examination findings. For the diagnosis of chronic allergic pharyngitis, in addition to the corresponding history of allergen exposure, corresponding symptoms and signs, skin allergen tests, total IgE and serum specific IgE tests should also be done to clarify the allergens. Gastroesophageal reflux-related investigations are feasible for chronic reflux pharyngitis. Therefore, when the complaints and physical findings do not match or there are other suspicions, the diagnosis of chronic pharyngitis should not be made hastily, but a detailed history must be taken and a comprehensive examination of the nose, pharynx, larynx, trachea, esophagus and neck and even occult lesions of the whole body must be done to avoid missing the diagnosis.