Migraine is a frequent, disabling and distressing disorder, which needs positive diagnosis and management. Some physicians in primary care still have limited awareness of treating this disorder (Minen et al, 2016). This two-part paper aims to help with this, rather than fully investigate the evidence behind recommendations. The literature abounds with reviews freely available if the reader wishes to explore the evidence in more depth. This first paper gives the reader a grounding in migraine to improve confidence in diagnosing and treating migraine, which in turn will improve patient treatment and outcomes