Two and a half year old baby sleep snoring in general is not normal, common causes of respiratory obstruction, rhinitis, etc., need to consult a doctor in a timely manner to clarify the cause of the disease, according to the cause of targeted treatment. 1. Respiratory obstruction: two and a half year old baby sleep snoring may be tonsil enlargement, adenoid hypertrophy, which can lead to the child’s respiratory tract narrowing, so there will be the symptom of sleep snoring, and in severe cases will even cause breathing difficulties. 2. Rhinitis: Rhinitis can make the child’s nasal mucosa congested and enlarged, causing the child to experience nasal obstruction, so the child may snore. In addition, there are other reasons can lead to two and a half year old baby snoring, breathing obstruction may even lead to the child’s brain chronic hypoxia, will affect the normal growth and development of the child, parents should take the child to the hospital in time to diagnose, comply with the doctor’s instructions for targeted treatment, so as not to miss the opportunity for treatment.