The causes of snoring in girls are the following: a. Obesity is one of the important causes of snoring. As the airway of obese people is narrower than normal, the muscles relax during sleep at night, the pharynx tissue is blocked and snoring occurs. Second, tonsil hypertrophy, adenoid hypertrophy, tongue hypertrophy, excessive length of the uvula, pharyngeal relaxation, posterior tongue drop, etc. lead to airway narrowing, causing snoring. Third, chronic rhinitis, sinusitis, nasal polyps, nasal septum deviation and other causes of airflow blockage, causing snoring. Fourth, congenital abnormal development of the jaws and congenital nasal passage narrowing can cause snoring. Some snoring is related to the nervous system, which is central, as well as overexertion and poor sleep posture, which can also cause snoring. So if a girl appears to snore, it is best to visit the hospital for further examination.