A runny nose is excess nasal drainage. It may be a thin clear fluid, thick mucus or something in between. The drainage may run out of your nose, down the back of your throat or both.
The terms "rhinorrhea" and "rhinitis" are often used to refer to a runny nose. Rhinorrhea actually refers to a thin, mostly clear nasal discharge. Rhinitis refers to the inflammation of nasal tissues. Rhinitis often results in a runny nose.
If you have a runny nose, you may or may not also have nasal congestion.
March 16, 2021
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- Post-nasal drip. American Academy of Otolaryngology — Head and Neck Surgery. https://www.enthealth.org/conditions/post-nasal-drip/. Accessed Feb. 8, 2019.
- Peden D. An overview of rhinitis. https://www.uptodate.com/contents/search. Accessed Feb. 8. 2019.
- Rhinitis. American Academy of Otolaryngology — Head and Neck Surgery. https://www.enthealth.org/conditions/rhinitis/. Accessed Dec. 31, 2018.
- Schulz KA, et al. Patterns of migraine disease in otolaryngology: A CHEER Network Study. Otolaryngology — Head and Neck Surgery. 2018;159:42.
- King TE, et al. Clinical features and diagnosis of eosinophilic granulomatosis with polyangiitis (Churg-Strauss). https:/www.uptodate.com/contents/search. Accessed Dec. 31, 2018.
- Sexton DJ, et al. The common cold in adults: Diagnosis and clinical features. https:/www.uptodate.com/contents/search. Accessed Dec. 31, 2018.
- Nasal congestion and rhinorrhea. Merck Manual Professional Version. https://www.merckmanuals.com/professional/ear-nose-and-throat-disorders/approach-to-the-patient-with-nasal-and-pharyngeal-symptoms/nasal-congestion-and-rhinorrhea. Accessed Dec. 31, 2018.
- Cold versus flu. Centers for Disease Control and Prevention. https://www.cdc.gov/flu/about/qa/coldflu.htm. Accessed Dec. 31, 2018.
- Lemiere C, et al. Occupational asthma: Clinical features and diagnosis. https:/www.uptodate.com/contents/search. Accessed Dec. 31, 2018.
- AskMayoExpert. Respiratory syncytial virus (RSV) infection (pediatric). Rochester, Minn.: Mayo Foundation for Medical Education and Research; 2018.
- Omoruyi EA. Practice Guideline: Approach to the child with rhinorrhea. Journal of Pediatric Health Care. 2018;32:319.
- Walls RM, et al., eds. Upper respiratory tract infections. In: Rosen's Emergency Medicine: Concepts and Clinical Practice. 9th ed. Philadelphia, Pa.: Elsevier; 2018. https://www.clinicalkey.com. Accessed Feb. 8, 2019.
- Barbara Woodward Lips Patient Education Center. Caring for your two-month old. Rochester, Minn.: Mayo Foundation for Medical Education and Research; 2015.
- Wilkinson JM (expert opinion). Mayo Clinic, Rochester, Minn. Feb. 14, 2019.