Rhinorrhea

Rhinorrhea is a clinical symptom and manifestation of upper respiratory tract dysfunction characterized by the excessive discharge of thin, serous, or thick mucopurulent secretions from the nasal cavity

Rhinorrhea is a clinical symptom and manifestation of upper respiratory tract dysfunction characterized by the excessive discharge of thin, serous, or thick mucopurulent secretions from the nasal cavity It affects pediatric and adult populations across acute and chronic conditions, most commonly involving the respiratory mucosa and neurovascular lining of the nasopharynx

Rhinorrhea is a clinical symptom and manifestation of upper respiratory tract dysfunction characterized by the excessive discharge of thin, serous, or thick mucopurulent secretions from the nasal cavity Depending on the underlying etiology, discharge ranges from watery and clear in allergic rhinitis or autonomic dysfunction to viscous and cloudy in infectious rhinosinusitis

It affects pediatric and adult populations across acute and chronic conditions, most commonly involving the respiratory mucosa and neurovascular lining of the nasopharynx

Pathophysiologically, it results from hypersecretion by submucosal seromucinous glands and increased vascular permeability of the nasal mucosa, driven by parasympathetic stimulation, viral inflammation, or allergen-mediated mast cell degranulation Depending on the underlying etiology, discharge ranges from watery and clear in allergic rhinitis or autonomic dysfunction to viscous and cloudy in infectious rhinosinusitis

Pathophysiologically, it results from hypersecretion by submucosal seromucinous glands and increased vascular permeability of the nasal mucosa, driven by parasympathetic stimulation, viral inflammation, or allergen-mediated mast cell degranulation

Depending on the underlying etiology, discharge ranges from watery and clear in allergic rhinitis or autonomic dysfunction to viscous and cloudy in infectious rhinosinusitis