Atrophic rhinitis is a chronic inflammatory disease of nasal cavity with slow development, and its incidence is regional. There are more female patients with this disease, mostly young adults, and those with poor health and living conditions are prone to this disease, which has shown a decreasing trend in recent years. It is characterized by dry and atrophic nasal mucosa, enlarged nasal cavity, dysosmia, and a large number of yellow-green pus idiots in the nasal cavity. Those with bad smell are called smelly noses. Scholars in the former Soviet Union think that this disease and smelly nose are two different diseases, while Chinese and western scholars think that they are different stages of the same disease.

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