There are mainly the following clinical possibilities for sudden snoring. The first one, the patient has recently consumed too much alcohol, overworked and tired, overdosed on sleeping drugs and other factors, resulting in sleep snoring, which can be relieved by itself after a period of time. The second type is that the patient has recently developed allergic rhinitis, acute pharyngeal edema, acute inflammatory changes in the pharynx, acute epiglottitis, etc., resulting in a significant narrowing of the airway in the nasal cavity and pharynx, leading to sudden snoring, which should be actively treated, and the snoring can be relieved after the disease is relieved. The third kind, the patient may be recently overweight, will suddenly snore. The fourth, the patient may have recently had a sudden cerebral infarction or cerebral hemorrhage and developed central sleep apnea syndrome, which will also suddenly snore.