What causes smell and taste disorders?
Some people are born with these disorders. But most are caused by:
- Illness such as cold or flu, COVID-19, sinus infection, and allergies
- Head injury
- Hormone changes
- Dental or mouth problems
- Nasal polyps
- Exposure to certain chemicals
- Certain medicines
- Exposure to radiation therapy for head or neck cancer
- Cocaine snorted through the nose
- Cigarette smoking