Medical Inflation (Medical Trend)
Medical inflation (medical trend) is the annual rate of increase in healthcare costs per insured person, made up of price, volume and treatment mix effects and regularly exceeding general inflation; for 2026 insurers expect 10.3 % globally according to WTW (Asia Pacific 14.0 %, North America 9.2 %, Europe 8.2 %), making it the central premium driver in international health insurance.
Definition
Medical trend measures the percentage by which per-capita claims costs in health insurance portfolios rise from one year to the next. It comprises three components: price inflation for services, drugs and wages in healthcare; volume growth through higher utilisation and ageing; and changes in treatment mix, for example through new therapies and diagnostics. It typically runs well above consumer price inflation. The two most widely used market studies are the WTW Global Medical Trends Survey, which for 2026 draws on data from 346 insurers and brokers across 91 countries, and the Mercer Marsh Benefits Health Trends Report, based on 268 insurers surveyed in 67 markets outside the US.
Current Figures and Drivers
For 2026 WTW projects a global gross increase of 10.3 %, following 10.0 % in 2025 and 9.5 % in 2024. Regionally the range extends from 8.2 % in Europe through 9.2 % in North America and 11.3 % in the Middle East and Africa to 14.0 % in Asia Pacific; Latin America accelerates to 11.9 %. Mercer Marsh Benefits expects rates above 10 % in most regions for the sixth consecutive year. The insurers surveyed cite new medical technologies, the retreat of public health systems and more expensive pharmaceuticals as the main drivers; among diagnoses, cancer, cardiovascular disease and mental health dominate.
Relevance for IPMI
International health insurance is re-rated annually, and the medical trend of the area of cover feeds directly into the renewal premium alongside the age step. A worldwide area including the USA carries the steepest cost path, while regional zones dampen premium development. For employers with group schemes, the trend together with their own claims experience is the determining factor in budget planning; countermeasures include deductibles, network steering and prevention programmes.