Even having red blood cells that you can't see called microscopic hematuria.

即使有你看不见的红细胞也叫微观血尿。

Urinalysis and its sediment may reveal hematuria, pyuria, proteinuria, and cellular casts.

尿分析其沉淀物可能显示血尿、脓尿、蛋白尿和细胞管型。

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，腹。

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，肾乳头阻塞可引起坏死，表现为血尿、蛋白尿，即尿中的血细胞、蛋白质异常增多。

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，红细胞溜进尿，导致血尿，也是肾炎综合征的一个症状。

When damaged, therefore, membrane permeability increases and large molecules are allowed to be filtered into the urine like proteins, called proteinuria, and even red blood cells, called hematuria.

当足突细胞受损时，膜通透性增加，大分子被允许过滤到尿中：像是蛋白质，造成蛋白尿；甚至是红细胞，造成血尿。

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，因为它可显示镜下血尿或者肉眼血尿，即尿中有血。