There are many causes of allergic rhinitis in children, mainly genetic, environmental effects, such as pollen, dust mites and other allergens induced. 1. Allergic rhinitis in children is a common allergic disease, which is non-infectious. Parental genetics will determine whether a child is more prone to allergic rhinitis. 2. Allergens in the environment are also a common cause of allergic rhinitis in children. common allergens in children under 1 year of age include indoor dust mites, hair, animal dander, food, or pollen and other animal dander, etc. Children around 4 years of age can be triggered by allergic rhinitis due to pollen, strong odors, air pollution, and temperature changes. Pediatric allergic rhinitis in children is due to a variety of causes. Parents are advised to try to avoid exposure of their children to known allergens, ensure indoor ventilation as well as drying of clothing and bedding, and regular washing of bedding to avoid discomfort.