This article aims to explore how the media contributes to and generates 'risk' and 'risk perception.' The example of parents refusing to have their children immunised with the measles, mumps and rubella (MMR) vaccine following negative media reporting will be discussed. The media appears to have an important influence on the perception of risk. We are living in a society that is increasingly aware of risk, and in which risk is socially constructed. It is important that healthcare professionals provide clear, consistent, evidence-based information to clients, ensuring that any areas of uncertainty are acknowledged. Otherwise, the public's trust in the healthcare professional will be undermined.