Enlargement of both sides of the nose refers to bilateral inferior turbinate hypertrophy, which has many causes, such as chronic sinusitis, allergic rhinitis, chronic hypertrophic rhinitis and other factors. 1. Chronic sinusitis: chronic sinusitis patients often have mucopurulent secretions and swelling of the nasal mucosa, inflammatory factors stimulate bilateral inferior turbinate can cause mucosal hypertrophy. 2. Allergic rhinitis: Allergic rhinitis can also cause bilateral inferior turbinate hypertrophy, accompanied by watery secretion, nasal congestion and other phenomena, and the nasal mucosa can be found to be pale and edematous after examination. 3. Chronic hypertrophic rhinitis: this disease will cause chronic congestion, hyperplasia and thickening of the nasal mucosa, so it will block the nasal cavity, which is manifested as hypertrophy on both sides of the nose. There are many reasons for the hypertrophy of both sides of the nose, if accompanied by uncomfortable symptoms, it is recommended to go to the hospital in a timely manner to improve the examination to clarify the diagnosis, follow the doctor’s instructions to take standardized treatment, not to private treatment, so as not to lead to adverse consequences.