Rhinorrhea is characterized by which symptom?

Rhinorrhea is a medical term that specifically refers to excessive nasal drainage, commonly associated with conditions such as allergies, colds, or other upper respiratory tract infections. It is characterized by an increase in mucus production in the nasal passages, leading to a runny nose. Understanding rhinorrhea is important in assessing and managing respiratory conditions, as it can provide insight into the underlying cause of symptoms such as congestion or nasal blockage.

The other symptoms mentioned do not relate to rhinorrhea. Sweating, tear production, and muscle tension refer to different physiological processes that are not specifically associated with the function or condition of the nasal passages. Thus, recognizing that rhinorrhea is exclusively linked to excessive nasal drainage helps clarify its definition and contextualizes it within broader discussions of respiratory health.