Rhinitis is categorized into acute rhinitis, allergic rhinitis, vasomotor rhinitis, atrophic rhinitis, etc. The causes of different types of rhinitis can be different, which may be caused by bacterial infection, pollen irritation and other factors. 1. Acute rhinitis: acute dermatitis is usually caused by viral infections, common viruses include rhinovirus, influenza virus, adenovirus, etc. Bacterial infections may also occur on the basis of viral infections. 2. Allergic rhinitis: allergens such as pollen, fungi, mites and other allergens stimulate sensitive patients and may cause allergic rhinitis. 3. Vasomotor rhinitis: Autonomic nerve disorders caused by temperature, air pressure and other factors may cause inflammatory reactions in the nose. 4. Atrophic rhinitis: vitamin deficiency, endocrine disorders, long-term stimulation of harmful gases may cause atrophy of nasal mucosa and glands and cause disease. When suffering from rhinitis, it is recommended to go to the hospital in time to find out the cause of the disease and then carry out the relevant treatment.