嗯，呕吐腹泻三天没好，您可以再重新复查一个大便常规看看。
O O B-Symptom I-Symptom B-Symptom I-Symptom O O O O O O O O O O O B-Medical_Examination I-Medical_Examination O O B-Medical_Examination I-Medical_Examination I-Medical_Examination I-Medical_Examination O O O