The terrible “Schistosomiasis” Recently, the sky seems to have leaked, and the middle and lower reaches of the Yangtze River are almost in the rhythm of “rain, rain, rain”. The water level of rivers and rivers continues to rise, and many places along the Yangtze River are not in the water. On the news, I saw many parents with their children playing in the riverside water, and they really sweated for them, not just because of the danger of drowning, even in shallow waters, the schistosomiasis in the waters of the Yangtze River is really terrible. of. Schistosomiasis is endemic in 76 countries and regions in the world. Among them, Schistosoma japonicum is distributed in Asia, China, Japan, the Philippines, and Indonesia. This schistosome was first discovered in Japan, so it was named Schistosoma japonicum; Schistosoma haematobium is distributed in Africa and West Asia; Schistosoma mansoni is distributed in Central, South America, the Middle East and Africa. China only endemic schistosomiasis japonica, referred to as schistosomiasis. Schistosomiasis is prevalent in my country mainly in the Yangtze River Basin and the provinces to the south. The middle and lower reaches of the Yangtze River are endemic areas for schistosomiasis. Contact with infected water in the epidemic area can easily cause acute schistosomiasis infection. When the schistosome cercariae invaded the skin, the skin of the affected area may have a tingling sensation, followed by local papules or urticaria, which is called cercariae dermatitis. Coughing (easy to be mistaken for a cold) may occur 1 to 5 days after exposure to the infected water, and those with repeated infections may have more severe lung symptoms. When female worms begin to lay a large number of eggs, a small number of patients develop acute allergic symptoms dominated by fever, which often appear within 1 to 2 months after exposure to epidemic water. In addition to fever, they are accompanied by liver pain, bloating, diarrhea, and liver. Splenomegaly and increased eosinophils, stool examination of schistosomiasis eggs or trichome hatching results are positive. Acute schistosomiasis is more common in people who are not immune to schistosomiasis for the first time. It can also occur in chronic schistosomiasis patients who are re-infected with a large number of schistosome cercariae (not visible to the naked eye). If not treated in time, severe cases can lead to death. Acute schistosomiasis is a clinical type of schistosomiasis. Schistosomiasis can be divided into three stages: acute, chronic and late. After the acute phase, the condition gradually turns to the chronic phase. 90% of schistosomiasis patients in endemic areas have chronic schistosomiasis. At this time, most patients have no obvious symptoms and discomfort, or may be in a subclinical state from time to time, showing diarrhea and mucus in the stool And pus, hepatosplenomegaly, anemia and weight loss. Generally, about 5 years after infection, some heavily infected patients begin to develop advanced disease. Advanced patients with schistosomiasis liver disease are characterized by extreme weight loss, ascites, enlarged spleen, and severe late-stage symptoms such as distended abdominal veins. Late-stage schistosomiasis may also be complicated by appendicitis, colon disease, and intestinal obstruction. Small schistosomiasis is very harmful. Recently, the General Office of the National Health Commission issued the “Notice on Strengthening the Prevention and Control of Schistosomiasis in the Flood Season in 2020”, warning that at the same time, we must be especially alert to acute schistosomiasis! Both adults and children like to play in the water, but you must not come into contact with the infected water when you go to the epidemic area, swim without entering the water, wash your hands and feet (bath), especially if there are warning signs, you must not enter the water, and you must take precautions when entering the water.