At the time of infection an itchy, papular rash may occur at the site where the parasites enter the skin (called ‘swimmers’ itch’). This may be followed a few weeks later by a flu-like illness.
Mild bladder infection with bilharzia parasites is often asymptomatic. With more severe infection, the classical sign is terminal haematuria (blood seen in the urine towards the end of micturition).
Bilharzia of the bladder usually presents with terminal haematuria.
Bilharzia of the bowel may cause dysentery.