Snoring in children is not necessarily caused by adenoid hypertrophy. Adenoid hypertrophy is due to narrow respiratory passages, sleep vagus nerve excitation leads to relaxation of the throat muscles, mostly caused by sleep snoring. But in addition to adenoid hypertrophy, nasal congestion, tonsillar hypertrophy, and tongue fall can lead to snoring, as follows: 1. Nasal congestion: nasal congestion caused by rhinitis, nasal congestion due to poor breathing, the patient will be taken to open the mouth to breathe, and then snoring will occur. 2. enlarged tonsils: enlarged tonsils can be caused by a variety of reasons, such as inflammation of the surrounding tissues, nasopharyngeal secretion long-term stimulation. In the early stage of tonsillar hypertrophy, patients may suffer from open-mouth breathing, snoring and sleep apnea. 3. Tongue falling back: when tongue falling back, due to the tongue moving backward and blocking the pharyngeal cavity, it can cause poor breathing and snoring symptoms. To sum up, there are many reasons that cause snoring in children, not only adenoid hypertrophy, you need to go to the doctor to find out the reason and then make targeted treatment.