一般说来,痢疾病人都会出现腹痛腹泻、大便有脓血以及里急后重的排便特征。但也有相当数量的中毒性痢疾病人,在染病之初,甚至病情十分严重时仍不腹泻,仅表现为高热、嗜睡、面色苍白、四肢厥冷、血压下降等症状,只有通过粪便化验才能确诊。 In general, patients with dysentery will have abdominal pain and diarrhea, stool with sepsis and tenesmus. However, there are also a considerable number of patients with toxic dysentery who, at the onset of the illness, are still free of diarrhea even when their condition is very serious. Only those symptoms of fever, drowsiness, paleness, cold extremities and blood pressure drop can only be confirmed by stool tests.