The nose is not ventilated for many years may be chronic rhinitis, nasal septum deviation, sinusitis, etc., should be timely consultation to identify the cause of the disease. 1. Chronic rhinitis: for example, chronic hypertrophic rhinitis, the turbinate inside the nasal cavity is enlarged, resulting in the narrowing of the space of the nasal cavity of the total nasal passages, there will be such a situation of the nose is not ventilated. 2. Deviated septum: Most of the patients have congenital deviated septum. There is also a part of the patient’s trauma-induced septal deviation, which will lead to one side of the nasal cavity or both sides of the airlessness. 3. In sinusitis: the patient has intermittent nasal hyperventilation, in addition, in children’s patients children will have a part of the adenoid hypertrophy, will also lead to the obstruction of the posterior part of the nasal cavity, resulting in nasal hyperventilation. This symptom alone is not enough to diagnose the disease, and may be caused by other factors. It is recommended that the patient should consult a doctor to clarify the cause of the disease and give targeted treatment.