Migrants include a broad category of individuals moving from one place to another, either forced or voluntarily. Ethnicity and migration are interacting concepts which may act as determinants for migrants' health and access to health care. This access to health care may be measured by studying utilisation patterns or clinical outcomes like morbidity and mortality. Migrants' access to health care may be affected by several factors relating to formal and informal barriers. Informal barriers include economic and legal restrictions. Formal barriers include language and psychological and sociocultural factors.