If an infant snores occasionally, it is considered to be a physiological phenomenon, related to muscle relaxation. If it snores frequently, it is considered to be caused by respiratory infection, nasopharyngeal disease, gastroesophageal reflux, etc. It is necessary to go to the hospital for examination and treatment after clarifying the cause. Common causes and treatment a. Physiological factors: infants sleep, and breathing-related muscles are more relaxed, especially the tongue muscles, will be mildly sagging to the back, which affects the exhaust, appearing to sleep occasionally snoring situation. It is a physiological situation, changing position or gradually improve with age. Second, pathological factors: 1, respiratory tract infection: respiratory tract infection such as cold, the resulting inflammatory substances will stimulate the respiratory tract mucosa, resulting in mucosal edema, increased secretions, resulting in respiratory obstruction, the appearance of infants snoring in bed. In light cases, hot compress the nose, pay attention to rest, drink more water and supplement the appropriate amount of vitamin C. In heavy cases, anti-infection treatment is required under the guidance of a doctor, such as viral infections can be used triazolyl nucleoside, while active symptomatic treatment is required, such as the use of physiological seawater nasal spray to spray and wash the nasal cavity; 2, nasopharyngeal diseases: such as tonsil hypertrophy, adenoid hypertrophy, turbinate hypertrophy, nasal septum curvature, in addition to infants snoring in bed. Severe symptoms such as apnea will occur. Repeated episodes require consultation with pediatric internal medicine or otorhinolaryngology, sleep monitoring if necessary, and medication to relieve symptoms, but most are ineffective. In addition, rhinitis can also cause infants to snore in their sleep during episodes, and antihistamines such as loratadine and cetirizine can be given to relieve symptoms; 3. Gastroesophageal reflux: this is generally seen in babies under 3 months of age and is less common. Babies who are overfull are prone to gastroesophageal reflux at bedtime, resulting in a small amount of fluid being retained in the throat and causing the baby to snore in bed. Mild cases can be treated with lifestyle changes, while severe cases need to be treated with medication, such as the application of cimetidine and omeprazole. Note that infants should not take too much milk before going to bed, maintain a good sleeping position, and parents also need to provide a comfortable and quiet sleeping environment for their infants.