What’s this sudden gush of water coming out of my nose in my sleep?

Sleeping with a sudden stream of water coming out of the nose may be related to cerebrospinal fluid rhinorrhea, ruptured sinus plasma cysts, allergic rhinitis and other diseases.
1. Cerebrospinal fluid nasal leakage: intracranial hypertension caused by intracranial tumor or cerebral edema, a few congenital defects, weak bones at the base of the skull and other factors can lead to spontaneous cerebrospinal fluid nasal leakage. Most of them are caused by trauma, and the main manifestation is intermittent or persistent discharge of clear, watery fluid from the nose. When a sudden stream of water comes out of the nose during sleep, it may be related to this.
2. Sinus plasma cyst rupture: Sinus plasma cysts can occur in any sinus, for mucosal inflammation or metaplasia, capillary exudate plasma retention in the submucosal connective tissue gradually expanded to form cysts. After the cyst expands and ruptures, a stream of water can suddenly emerge from the nose while sleeping.
3. Allergic rhinitis: When allergic rhinitis patients are exposed to or inhale allergens, they may manifest symptoms such as nasal itching, nasal congestion, and a large amount of runny nose, if this process occurs when they sleep, the above mentioned symptoms may appear.
When sleeping with a sudden stream of water coming out of the nose, there are other possibilities, and it is recommended to actively consult a doctor for a systematic examination in order to clarify the diagnosis and the cause of the disease.