What causes a child to sleep with their mouth open?
Disease description:
Recently, I've noticed that my baby sleeps with his mouth open. What could be the reason for this?
Doctor's answer (1)
Dr. Zhou Xiaofeng
A child sleeping with an open mouth may be caused by various factors, including nasal congestion, enlarged tonsils, or habitual mouth breathing. When nasal passages are blocked, children open their mouths to breathe more easily. Enlarged tonsils may obstruct the airway, forcing the child to breathe through the mouth. In addition, habitual mouth breathing could also be a contributing factor. If a child consistently sleeps with an open mouth, it may affect sleep quality, and parents are advised to consult a doctor promptly.
