脓细胞就是变了性的白细胞。脓细胞与白细胞之间无明显分界,有人主张将形态破烂、内部结构不清、数量多且成堆者称为脓细胞。泌尿系统轻度炎症可出现白细胞,一般来说每高倍视野白细胞超过5个或聚集成堆者,提示有炎症存在。如果有化脓性炎症,如肾盂肾炎、膀胱炎等就会出现脓细胞。急性肾小球肾炎(简称急性肾炎)是因感染后引起的免疫反应所导致全身的小动脉收缩痉挛和毛细血管通透性增加,造成肾小球血管的内皮细胞肿胀、变性及间质渗出。此时肾小球滤膜受损,通透性增加,蛋白 Pus is a variant of white blood cells. Pus and no obvious boundary between leukocytes, some people advocate the shape of tattered, the internal structure is unclear, the number of large and piles are called pus. Mild inflammation of the urinary system can occur leukocytes, in general, each high power field more than 5 leukocytes or gathered piles, suggesting that inflammation exists. If there purulent inflammation, such as pyelonephritis, cystitis and so there will be pus cells. Acute glomerulonephritis (acute nephritis) is caused by the immune response caused by infection of the systemic arterioles shrink spasm and increased capillary permeability, resulting in glomerular endothelial cell swelling, degeneration and interstitial exudation . At this point glomerular filtration membrane damage, increased permeability, protein