Wild Swimming Increases Risk of Stomach Bugs, Skin Rashes

Wild swimming has surged in popularity across Europe, but a new study warns that the activity may carry health risks. Researchers examined the incidence of illness among people who bathed in rivers and lakes, making this the largest controlled investigation of its kind. The analysis highlighted a clear link between water quality and health outcomes, raising concerns for the growing number of recreational swimmers.

The study found that swimmers in certain Hungarian sites were more than twice as likely to develop skin problems compared with other locations. Additionally, the risk of stomach bugs rose significantly in waters with higher concentrations of *E. coli* and other bacteria associated with faecal pollution. These findings suggest that both the presence of pathogenic microorganisms and local environmental factors contribute to the increased incidence of gastrointestinal and dermatological illnesses among wild swimmers.

Public health officials may use the data to advise on safe swimming practices and to monitor water quality more closely. While the study does not deter the enjoyment of natural bodies of water, it underscores the importance of testing and managing bacterial contamination to protect the health of recreational users.