The decision to migrate is rarely easy. For many, there is little choice because of conflict or natural disaster, and their journeys may take months or years. Finding healthcare while in transit can be extremely challenging, and migrants may be denied care once settled. Although many migrants prosper in their new homes, for others the physical and psychological traumas can be lifelong.1 The number of migrants continues to grow2 with an estimated 1000 million in the world, including 258 million international migrants.3 Of the latter, an estimated 65 million have been forcibly displaced. Nearly 26 million are refugees and asylum seekers, the highest number since the second world war.