Suggestions: Blood-sucking worms are parasites that enter the human body from the skin and parasitize the venous system. Acute blood-sucking worms are often infected for the first time with rash, fever, cough, chest pain, abdominal pain and diarrhea, hepatosplenomegaly, jaundice and kidney damage, generally less than 6 months. Chronic schistosomiasis often develops into chronic without treatment in the acute stage, and may be asymptomatic or have abdominal pain, diarrhea and hepatosplenomegaly. Chronic blood sucking worm liver disease is a serious disease that damages the liver, has hepatomegaly, fibrosis, and can develop into cirrhosis, portal vein elbow to splenomegaly, esophageal variceal bleeding and so on in the late stage.