What causes anosmia?

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What causes anosmia?

There are many common conditions that can cause anosmia to develop. These may include:

  • Nasal polyps.
  • Common cold.
  • Influenza (flu).
  • Nasal congestion.
  • A deviated septum.
  • Sinus infection (sinusitis).
  • Hay fever or other allergies.

Anosmia has also be linked to:

  • Diabetes.
  • Smoking.
  • Obesity.
  • High blood pressure (hypertension).
  • Kallmann’s syndrome.
  • Alzheimer’s disease.
  • Certain medications, such as antibiotics and antihistamines.
  • Multiple sclerosis (MS).
  • Parkinson’s disease.
  • Sjogren’s syndrome.
  • Traumatic brain injury.
  • Brain tumors.

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