Osmophobia or olfactophobia refers to a fear, aversion, or psychological hypersensitivity to odors. The phobia generally occurs in chronic migraine sufferers who may have odor triggered migraines. Such migraines are most frequently triggered by foul odors, but the hypersensitivity may extend to all odors. One study found as many as 25% of migraine sufferers had some degree of osmophobia. The condition may also be present in individuals experiencing substance withdrawal, specifically opioid withdrawal syndrome, where it is usually associated with nausea and/or vomiting.
- Kelman L (November 2004). "The place of osmophobia and taste abnormalities in migraine classification: a tertiary care study of 1237 patients". Cephalalgia 24 (11): 940–6. doi:10.1111/j.1468-2982.2004.00766.x. PMID 15482356.
- Kelman L (2004). "Osmophobia and taste abnormality in migraineurs: a tertiary care study". Headache 44 (10): 1019–23. doi:10.1111/j.1526-4610.2004.04197.x. PMID 15546266.
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