From this comparison of 37 black children with hepatic schistosomiasis (HS) and 53 with intestinal Schistosoma mansoni (IS) living in an endemic area, we propose easily identifiable clinical features of mild HS. These patients were generally well nourished school-age children who seldom complained of dysentery but who had a firm hepatomegaly with predominant enlargement of the left lobe and a firm splenomegaly. They were also mildly anaemic (9.4 +/- 2.2 g/dl) and had low serum albumin (30 +/- 7 g/l), raised aspartate transaminase (36 +/- 31 u/l) and high globulins (53 +/- 15 g/l). The implications of the absence of severe hepatosplenic schistosomiasis in many of these children are discussed.