This can again cause hematuria, blood in the urine, as well as flank pain.

这会再次导致血尿，即尿中有血，以及侧腹痛。

So when there is glomerular injury, red blood cells sneak into the urine —causing hematuria, which contributes to this being a type of nephritic syndrome.

因此当肾小球损伤时，红细尿液，导致血尿，也是肾炎综合的一个症状。

In addition, clogging in the renal papillae can cause necrosis, which can manifest as hematuria and proteinuria - blood and protein spilling out into the urine.

此外，肾塞可引起坏死，表现为血尿、蛋白尿，即尿液中的血细、蛋白质异常增多。

Diagnosis involves a history and physical exam, as well as imaging studies like X-rays, CT scans or ultrasound, and finally urinalysis because it might show microscopic or gross hematuria or blood in the urine.

诊断基于病史、体格检查，X光、CT平扫、超声等影像学检查，最后还有尿常规，因为它可以显示镜下血尿或者肉眼血尿，即尿液中有血。