The causes of drooling in women are usually not significantly different from other groups. It is mainly caused by improper sleeping posture, if seen in girls, it may be due to the vigorous secretion of saliva in girls, which is a normal physiological phenomenon. In addition, it may also be related to a variety of factors, including dental malformations, oral diseases, nasopharyngeal diseases, obesity, etc. 1, dental malformations: due to dental malformations, such as malocclusion, open jaw, misalignment, etc., may cause women to open mouth breathing phenomenon, sleep mouth can not be closed naturally, the phenomenon of drooling while sleeping; 2, oral diseases: if women suffer from dental caries, periodontitis, gingivitis Oral diseases: if women suffer from dental caries, periodontitis, gingivitis and other oral diseases, it is easier to breed bacteria, resulting in excessive secretion of saliva, resulting in the phenomenon of drooling in bed; 3, nasopharyngeal diseases: if female patients suffer from rhinitis, adenoid hypertrophy, deviated nasal septum and other nasopharyngeal diseases, mainly manifested as nasal congestion, runny nose and other nasal discomfort symptoms, can also lead to the phenomenon of drooling in bed; 4, obesity: if women are more obese, sleep can The phenomenon of tongue root back, resulting in airway obstruction, can cause the symptoms of drooling in bed; 5, other diseases: women appear to sleep drooling phenomenon, but also by facial nerve palsy, cerebral palsy, Down’s syndrome, Alzheimer’s disease, Parkinson’s disease, sleep apnea syndrome, slow lung and other diseases, it is recommended that patients go to the hospital in a timely manner to clarify the cause, targeted treatment.