Can spinal fluid come out from your nose after a neck injury? was in a head lock while being assaulted and was squeezing my neck very hard for about 45 seconds.

This : This less likely than if you were struck in the midface. Cerebral spinal fluid (CSF) can leak from the nose due to fracture of a thin plate of bone above the nose called the cribiform plate. This type of leak is usually due to a direct blow to the midface.

The : The mechanism for possible CSF rhinorrhea here would be implosive, based on elevated intracranial pressures and leakage through thin boney foramina or natural dehiscences. If you are now experiencing clear liquid drainage from your nose it can be collected in a small test tube and sent for the beta subunit of transferrin which is specific for csf. Your ENT physician should be able to do a good nasal endoscopic exam for you and submit the collected drainage for you if deemed appropriate. Identifying CSF rhinorrhea is important to minimize the risk of possible meningitis.

That : That would be unlikely. Trauma to the head itself is the most common reason for spinal fluid leakage. The question is what is coming out the nose. If you can collect some of it in a cup, it can be analyzed for the characteristic chemicals that are unique to cerebrospinal fluid. Your doctor can arrange for that test.