Apnea syndrome, or obstructive sleep apnea, usually does not require a painless gastrostomy. Obstructive sleep apnea refers to the repeated occurrence of upper airway collapse and obstruction during sleep, which is mostly characterized by symptoms such as sleep snoring, apnea and daytime sleepiness. For patients suffering from obstructive sleep apnea, it is recommended to perform tests such as blood routine, arterial blood gas analysis and CT of the upper airway, and sleep apnea monitoring, sleep fiberoptic laryngoscopy and other items if necessary. Painless gastroenteroscopy is mostly not required for those with obstructive sleep apnea. Patients considering obstructive sleep apnea are advised to seek prompt medical attention for a definitive diagnosis and targeted treatment under the guidance of a physician.