An outpatient, due to dry mouth, bitter mouth, pharyngeal foreign body sensation for several years to see the patient, the patient complained that has been in a number of hospitals for a number of tests, spent tens of thousands of dollars, and so far still poor results. The patient and his family took out a pile of examination data, including CT, ultrasound and even PET-CT. The information showed that the patient did not find any other organic diseases except chronic pharyngitis. The patient was worried about getting cancer and had a face of anxiety and pain. Seeing the patient’s slightly obese body type and thick and short neck, the doctor’s heart is in the right place. Asked whether the patient sleep snoring phenomenon, the patient’s family gave a positive answer; asked whether the patient sleepiness phenomenon, the patient said that sitting and watching TV, fell asleep at once; asked whether the patient irritability, irritability phenomenon, the patient smiled but did not answer. All of the presentations are consistent with sleep apnea syndrome (OSAHS). The patient was told not to worry about having cancer, and that there was no need to take medication or injections, and that he could improve his current physical condition by exercising more, eating a low-fat diet, and losing weight, or else he would be at risk of developing high blood pressure, heart disease, and diabetes. The mystery that has been troubling the patient for many years has finally been solved, and the patient’s illness has been analyzed by the doctor, and at the same time, he has confidence in curing the disease. The direct pathogenesis of OSAHS is the narrowing and obstruction of the upper airway, causing repeated episodes of nocturnal hypoxia and hypercapnia, which can lead to hypertension, coronary heart disease, diabetes mellitus, and cerebrovascular disease and other complications and traffic accidents, and even sudden nocturnal death. There are many causes of upper airway narrowing and obstruction, including nasal septum curvature, tonsil hypertrophy, and soft palate overgrowth. In addition, obesity, mucous edema of upper airway tissues, as well as oropharyngeal or hypopharyngeal tumors can also cause OSAHS. Clinical manifestations: 1. snoring 2. daytime drowsiness 3. apnea occurs in sleep: heavier patients often suffer from breath-holding at night, or even sit up suddenly, sweating profusely, with a sense of near-death. 4. dry pharynx, bitter taste in mouth, and sensation of foreign body in the pharynx: since patients are in the state of open-mouth breathing when they are sleeping, they After waking up in the morning, the phenomenon of dry throat and bitter mouth will appear. After a long time, chronic pharyngitis will be formed and foreign body sensation in the pharynx will occur.5. Increased nocturia: increased nocturia at night due to apnea and enuresis in individual patients.6. Headache: due to oxygen deprivation, the patient will have headache in the morning.7. Personality changes and other systemic complications, including temper tantrums, intellectual and memory loss, and sexual dysfunction, etc. For the less severe cases of OSAHS, it is mainly through changing the position (side-lying) during sleep, and the patient will have to change the position (side-sleeping) during sleep. For less severe OSAHS, it is mainly treated by changing the sleeping position (lying on the side), quitting smoking and drinking, losing weight, and physical exercise. For less severe cases, OSAHS can be treated by changing the position during sleep (lying on the side), quitting smoking and drinking, losing weight, or physical exercise.