Haematuria in experimental schistosomiasis mansoni.

Haematuria was found in 27% of mice experimentally infected with Schistosoma mansoni. The presence of red blood cells in the urine was detected only after the sixth week of infection. Haematuria was not due to the direct action of the parasite, since no eggs were found in the urinary system. The blood in the urine disappeared after two weeks of curative treatment with an anti-schistosomal compound.