What is chronic migraine?

Updated: Oct 21, 2019
  • Author: Jasvinder Chawla, MD, MBA; Chief Editor: Helmi L Lutsep, MD  more...
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Chronic migraine is defined as migraine headache that occurs for more than 15 days a month for greater than 3 months. Most patients with chronic migraine have a history of migraine headaches that started at a young age. Associated symptoms of nausea, vomiting, photophobia, and phonophobia may be less frequent.

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