The etiology of chronic pharyngitis are manifold, together divided into the following three categories:
External factors: life Regional Climate cold, dry air was dust working environment, chemical gas pollution, tobacco, alcohol, spicy food to stimulate long-term, easy to get chronic pharyngitis.
Local factors: recurrent acute pharyngitis, can be transformed into chronic. Adjacent organs diseases, such as chronic tonsillitis, teeth with inflammation, dental caries, chronic rhinitis, chronic sinusitis, inflammatory secretions into the pharynx, or chronic nasal ventilation Bibing caused by mouth breathing difficulties and throat irritation and long-term a chronic inflammatory changes.
Systemic factors: long-term life is the law of fatigue, mental stress, physical resistance decreased bacterial and viral infections easily repeated. Allergic physique of the people outside environment, climate change over sensitive and easy flu, caused pharyngitis.
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