Schistosomiasis (bilharzia)

Schistosomiasis, often referred to as bilharzia, is an infection caused by small worms that inhabit ponds, lakes, and rivers. While it is not present in the UK, there is a risk of infection in certain regions around the world. These tiny worms thrive in untreated freshwater sources such as rivers, lakes, and ponds. Although they are invisible to the naked eye, they can be present in water that appears clean. If you come into contact with contaminated water—such as while swimming, washing, or wading—you could risk the worms penetrating your skin and entering your body.