Causes of Anosmia

Anosmia is the loss of ability to smell. It can be either temporary or permanent depending on the cause. Temporary anosmia is common with colds, sinus infections (sinusitis) and nasal allergies. Other potential causes of anosmia include:

  • Enlarged adenoids
  • Nasal polyps
  • Exposure to tobacco smoke
  • A side effect of medication
  • Trauma to the face and nasal structures
  • Tumors, such as neuroblastomas, meningiomas, frontal globe gliomas and pituitary gland tumors.


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