It is a chronic neurological disorder associated with frequent episodes of headache. It is seen in 10–15 % of the population. The male to female ratio is 1:3. The prevalence increases with age and maximum prevalence is seen in the fourth decade. Aura (visual disturbances, flashing lines, loss of vision, pins and needles, numbness, hemimotor weakness and dysphasia) is seen in 20 % of patients. It is mostly seen in frequent attacks of headache lasting 4–72 h that is throbbing in intensity and is aggravated by movement. Precipitating features include stress and foods such as wine and cheese. The pathophysiology includes cortical and neuronal hyperexcitability. In familial hemiplegic migraine, mutations in the P/Q calcium channel complex are seen. Basilar-type migraine is seen in young adults and presents with basilar symptoms (dysarthria, vertigo, tinnitus, ataxia, diplopia, bilateral paraesthesias).