The Cause of Pyelonephritis

Pyelonephritis is caused by all kinds of pathogenic microorganism directly affect the renal pelvis and calyces mucosa of renal tubules, renal interstitial infective inflammation.Found in recent years, in some patients with pyelonephritis renal bacteria exist in the scar tissue antigen, show that in the pathogenesis of acute pyelonephritis, kidney damage induced by inflammation can also be one of the reasons.

The pathogenic bacteria of pathogenic bacteria that cause pyelonephritis in e. coli, for most, the second vice escherichia coli, proteus, streptococcus faecalis, etc.

Transmission:

1, the uplink infection: ascending infection is the most common way.When the body resistance decline, the urethra mucous membrane after a slight injury, bacteria easy invasive bladder and kidney infections.Because of the female urethra than men short, wide, female urethral mouth has often been pollution of excrement and urine, so easy to cause disease.On the kidneys of bacteria invasion in renal pelvis mucosa, cause inflammation, and then the calyces, nipple, renal tubular upward, in violation of renal parenchyma.

2 line, blood infection, bacteria from the body within the lesion invasion of blood flow, arrived in kidney cause inflammation, cause inflammation, blood infection, the bacteria first reached the renal cortex, and at the most small abscess formation, and then along the renal tubules spreading downward to the renal papilla and renal pelvis.

3, lymphatic infection;


4, direct infection, trauma, or organ of the adjacent kidney infections, bacteria can be invaded directly renal arteries and veins cause inflammation.