The possibility of respiratory sleep apnea syndrome should be suspected in case of intermittent cessation of breathing in sleep. Patients may show recurrent apnea and hypoventilation during sleep accompanied by significant snoring. It is mostly seen in patients with obesity, thick and short neck, tonsillar hypertrophy, deviated nasal septum and narrow nasal cavity, and certain endocrine diseases such as hypothyroidism and acromegaly syndrome can also be seen. Intermittent apnea occurs mainly because of the narrow nasopharyngeal cavity based on the increase in soft tissue and muscle collapse in the upper airway during sleep and exhalation, and the airway is easily collapsed and occluded so that the exhalation airflow is reduced or stopped. When the above situation occurs, it is necessary to perform respiratory sleep monitoring examination in a timely manner, and ask the respiratory medicine and otorhinolaryngology departments to coordinate consultation and treatment for timely treatment to avoid serious complications such as long-term impact on sleep quality.