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Multimorbidity in patients with chronic migraine and medication overuse headache

Patients with chronic migraine (CM) display a considerable amount of comorbidities, particularly psychiatric and cardiovascular, and the presence of multiple comorbidities, that is, the so‐called multimorbidity, is a risk factor for migraine chronification or maintenance of CM. Our aim was to address the rate and impact of multimorbidity in patients with CM and medication overuse headache (MOH).