Children who sleep with loud nose breathing can go to pediatrics, otolaryngology, respiratory medicine, etc., taking into account their clinical manifestations and underlying diseases. 1. If the child is too young to express symptoms accurately, consult a pediatrician for a professional and systematic examination. 2. If the child has been sleeping and breathing loudly for a long time, with teeth grinding and drowsiness, consider adenoid hypertrophy and consult an ENT department. 3. If the child’s breathing is loud in bed by chance, and there is fever, runny nose, nasal discomfort, etc., suspect the possibility of respiratory tract infection, you can go to the respiratory medicine department. Therefore, for children sleeping and breathing loudly through the nose, you need to choose the appropriate department according to the specific situation of the child, and under the guidance of the doctor for treatment.