患者女性.15岁,学生,因下腹部胀痛,脓血便就诊。询问无月经史,下腹痛20天,初起大便每日3～5次,为成型软便,伴里急后重感,呈进行性加重。在某院诊为“肠炎”、“菌痢”。给予土霉素、黄连素、氯霉素、碘胺咪等交替治疗20余天,症状未减轻。本次就诊前出现稀便,每日10次左右,开始为粘液稀便,后为脓血便,里急后重感明显,腹部隐痛。查体:少年女性,消瘦,浅 Patient Female .15 years old, student, due to lower abdominal pain, pus and blood treatment. Ask no history of menstruation, lower abdominal pain for 20 days, beginning stool daily 3 to 5 times, for the formation of stool, with tenesmus heavy sense, was progressive increase. In a hospital diagnosed as “enteritis”, “bacillary dysentery.” Given oxytetracycline, berberine, chloramphenicol, iodine and other alternating microphone therapy more than 20 days, the symptoms did not alleviate. The stool before the treatment, about 10 times a day, began to mucus loose stool, after the pus and blood will be, tenesmus heavy sense of obvious abdominal pain. Physical examination: young women, weight loss, light