Consanguinity is defined as the result of a sexual reproduction of two related individuals, but may also reference populations that share a common ancestor or communities that practise endogamy. There is a higher prevalence of genetic anomalies of the offspring of consanguineous relationships. However, the habit of blaming ethnic minorities for their own genetic conditions is unhelpful and has detrimental consequences for families and their children.

This article discusses some of the issues related to consanguineous unions and their link to congenital abnormalities and the perceived increase in learning disabilities and considers how genetic services for people in consanguineous unions might be improved. The article focuses mainly on the Pakistani Muslim population in northern England with reference to local research.