If snoring occurs only when a child has a cold, it is mostly due to upper respiratory tract infections, resulting in enlarged tonsils or enlarged throat, adenoid hypertrophy and other narrowing of the respiratory tract, resulting in snoring. When given anti-infection treatment, snoring will disappear after the cold recovers. If the baby in the weekdays also often snoring phenomenon, to pay attention to the existence of adenoid hypertrophy, need to timely to the ear, nose and throat consultation, if necessary, tonsil or adenoidectomy. Because long-term snoring can lead to chronic hypoxia, and in severe cases can affect intellectual development, so we should go to the hospital in time.