Acute Schistosoma infection is often asymptomatic, but chronic illness is frequent and manifests in different ways according to the location of the parasite, involving the gastro-intestinal, urinary or neurological system.
Äge Schistosoma -nakkus kulgeb sageli sümptomiteta, ent krooniline haigestumine on sage ning avaldumisvorm sõltub parasiidi asukohast organismis (seedetrakt, kuseteed või närvisüsteem).