由于反复或重度感染血吸虫尾蚴,未经及时治疗,或治疗不彻底,经过较长时期的病理发展过程,形成肝硬化门静脉高压症,或儿童时期感染严重影响生长发育,发展为晚期血吸虫病。目前根据主要的临床特征,概括为4种类型,即腹水型、巨脾型、侏儒型和结肠肉芽肿型。这几种类型可单独或同时存在,或先后出现于同一患者。在发展过程中常有上消化道出血病史,后期可并发肝性昏迷。 Due to repeated or severe infection of schistosome cercariae, without timely treatment, or treatment is not complete, after a longer period of pathological development, the formation of cirrhosis and portal hypertension, or childhood infection seriously affect the growth and development of advanced schistosomiasis. At present, according to the main clinical features, summarized as four types, namely ascites, splenomegaly, dwarf and colon granuloma type. These types can exist individually or simultaneously, or one after the other in the same patient. In the development of the history of upper gastrointestinal bleeding often, the latter may be complicated by hepatic coma.