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Olfaction‐related symptoms accompany migraine attacks and some, such as osmophobia, may be useful in differentiating migraine from other types of headaches. However, the types and frequencies of olfactory symptoms associated with migraine have not been well characterized. The goal of this study was to better characterize the olfactory symptoms of migraine.

A cross‐sectional study was devised. One hundred and thirteen patients who met the International Classification of Headache Disorders II criteria for migraine were administered a new 65‐item questionnaire specifically focused on olfaction‐related experiences (eg, odor‐related triggers, osmophobia, cacosmia, phantosmia, olfactory hallucinations, olfactory hypersensitivity, and self‐perceived olfactory function). Visual analog scale ratings and frequencies were computed and compared between migraineurs with and without auras …