A runny nose is invariably due to excessive secretions from the nasal glands. It is a common feature of rhinitis and of nasal or sinus infections. Typically it is clear and watery. Thick yellow and green secretions are due to a bacterial or rarely fungal rhinosinusitis, as nasal infections co...
Since an air-fluid level in the sphenoid sinus is always abnormal, in the absence of sinusitis symptoms, head trauma, or previous neurosurgical procedures, it connotes a fluid, namely cerebrospinal fluid (CSF). With the impression of a CSF leak, the watery gush in the mornings was attributed...
CSF rhinorrhea is a condition where cerebrospinal fluid (CSF) leaks through the nose. Normally cerebrospinal fluid is confined to the space around the brain and spinal cord. Due to its close proximity to the sinus and nasal cavity, any opening will allow CSF to leak into it and then drain ...
you can think the drainage as watery nasal secretions.Now this drainage may lie between anything from a clear fluid to thick mucus. This excess drainage is what runs out of your nose.