Snoring in children may be caused by obesity, enlarged lymphatic tissue or rhinitis. 1. Physical obesity: if children are obese, it is easy to cause the blockage of the airway in the throat and snoring symptoms when they sleep. 2. Enlarged lymphatic tissues: tonsils and adenoids belong to lymphatic tissues in the head and face, and if there is swelling, it will lead to narrowing of the nasopharyngeal area, resulting in poor breathing and snoring during sleep. 3. Rhinitis: If children suffer from rhinitis, it may lead to swelling of nasal mucosa, nasal secretion blockage and other symptoms, which will affect the ventilation of nasopharynx and lead to snoring. If the snoring of children is caused by obesity, it is recommended to go to regular hospitals for examination to find out the cause of the disease, and then under the guidance of professional doctors for treatment.