病例 患儿,女,8岁。三年前因腰疼验尿常规发现有红、白细胞,以“尿路感染”治疗后,腰疼及尿中白细胞消失,但镜下血尿持续至今,无任何不适症状。每于感冒后血尿加重。入院查体:一般状态佳,血压14/9kPa,双眼睑无浮肿,浅表淋巴结无肿大、双肺、心脏未见异常、腹软、肝脾不大,双下肢无浮肿。辅助检查:入院后多次查尿常规,红细胞持续++～+++,尿蛋白阴性。二次查有 Case of children, female, 8 years old. Three years ago due to back pain urine test found red and white blood cells to “urinary tract infection” treatment, back pain and urinary white blood cells disappear, but microscopic hematuria persists, without any discomfort. Hematuria increased after each cold. Admission examination: the general state of good, blood pressure 14 / 9kPa, eyelid edema, superficial lymph nodes without swelling, lungs, no abnormal heart, abdominal soft, small spleen, lower extremity without edema. Auxiliary examination: check urine routine after admission, red blood cells continued ++ ~ +++, urine protein negative. Checked twice