Background: A secondary headache may develop de novo or in patients with a history of primary headaches, and a thorough history and neurological exam often helps to suspect a secondary etiology. Hence; the present study was planned for assessing the prevalence of abnormal MRI findings in patients with Migraine, Cluster and tension type headache patients. Materials & methods: A total of 24 cases of chronic secondary headache were enrolled in the present study. Secondary headache patients included patients with space occupying lesions (n=4), patients with withdrawal headache (n=4), patients with cerebral ischemia (n=4), patients with psychiatric headache (n=4), patients with infection (n=4) and patients with seizure (n=4). A self-framed questionnaire was made for obtaining complete knowledge about the demographic and clinical details of all the patients. MRI was carried out in all the 24 patients and MRI findings were assessed. Results: Out of 24 patients with secondary headache, abnormal findings were found to be present in 54.17 percent of the patients. Conclusion: MRI of brain is effective identification of underlying pathology in patients with secondary (chronic) headache However; further studies are recommended. Key words: Chronic, Secondary headache.