Introduction: Migraine is a neurological disorder characterised by recurrent bouts of severe headaches with autonomic and neurological symptoms. Scientific advances in recent decades have provided us with a clear understanding of the pathophysiology of migraine and enabled the development of migraine specific acute and preventative therapies. Migraine occurs in 10-12% of the population and there is a 3:1 female to male ratio. It is particularly common, in women of all ages, and female preponderance begins around the time of the menarche. The World Health Organisation Global Burden of Disease study ranked migraine as the 2nd leading cause of disability and the leading cause in women under the age of 50 years.
Diagnosis: The International Headache Society has standardised the diagnosis of migraine using universally accepted diagnostic criteria (ICHD3) and these guidelines have provided us with a uniform approach to diagnosis in clinical practice (Fig 1,2,3,4).
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