[病 例]男,17岁。因感冒后出现眼睑浮肿伴间歇性全程肉眼血尿2周,1990年2月在某医院就诊。体检除眼睑轻度浮肿外,无其它阳性体征。尿常规、尿三杯试验检查均为镜下血尿,尿蛋白+～++,管型阴性。尿脱落细胞多次检查均阴性。B超、肾盂逆行造影检查,泌尿系均未发现阳性征象。临床确诊为肾小球肾炎,按肾炎治疗,先后应用大量激素、抗生素及中药治疗数月,肉眼血尿时有消失。为彻底弄清血尿原因,于1991年1 [Case] ​​Male, 17 years old. Due to a cold eyelid edema with intermittent gross hematuria 2 weeks, in February 1990 in a hospital. Physical examination except eyelid mild edema, no other positive signs. Urine routine urine test three cups are microscopic hematuria, urinary protein + ~ + +, tube negative. Urine exfoliated cells were negative for many times. B ultrasound, retrograde pyelography, urinary tract were found no positive signs. Clinical diagnosis of glomerulonephritis, according to nephritis treatment, has applied a large number of hormones, antibiotics and Chinese medicine for several months, when the gross hematuria disappeared. To thoroughly understand the causes of hematuria, in 1991 1