Causes of Runny Nose

Common causes of a runny nose include:

Infections in the regions around the nose may cause and be caused by a runny nose:

Other lesser known causes include:

  • Vasomotor rhinitis
  • Atrophic rhinitis
  • Chronic sinusitis
  • Chronic bacterial sinusitis
  • Chronic fungal sinusitis
  • Cluster headache
  • Basilar skull fracture (CSF discharge)
  • Mucormycosis
  • Choanal atresia
  • Ethmoiditis
  • Nasal tumor
  • Sinus tumor
  • Rhinoscleroma
  • Granuloma (Wegener’s granulomatosis)
  • Congenital syphilis

Other causes of runny nose include:

Similar symptoms of nasal discharge (rhinorrhea) that are not usually meant by a “runny nose” in everyday usage include:

See also causes of related symptoms such as:

Note: This site is for informational purposes only and is not medical advice. See your doctor or other qualified medical professional for all your medical needs.