Sneezing in children is related to physiological factors such as inhalation of irritating gases and dust stimulation, and is also considered to be related to diseases such as upper respiratory tract infections and allergic rhinitis. 1. Physiological factors: sneezing may occur when children inhale irritating gases and suffer from dust stimulation. 2. Upper respiratory tract infection: mainly related to viral, bacterial and other pathogens, rain, low immune function and other triggering factors. When children are sick, they will have symptoms such as cough, runny nose, sneezing, nasal congestion, etc., which are easily accompanied by other symptoms such as pharyngeal discomfort, loss of appetite, and fear of cold. 3. Allergic rhinitis: the disease is related to genetic and environmental factors, which can cause sneezing in some children. Some children with allergic rhinitis are also prone to itchy nose, runny nose, loss of sense of smell, nasal congestion and other symptoms. Parents are advised to create a good living environment for their children and open the windows frequently for ventilation. If your child sneezes frequently or suffers from other discomforts, you should consult a doctor.