Stagnation of urine in the kidney pelvis seems to greatly encourage pyelitis.
看起来,肾盂内尿潴留可能大大地促使肾盂肾炎的发生。
英语百科
Renal pelvis
(重定向自Kidney pelvis)
The renal pelvis or pelvis of the kidney is the basin-like or funnel-like dilated proximal part of the ureter in the kidney.
In humans, the renal pelvis is the point of convergence of two or three major calyces. Each renal papilla is surrounded by a branch of the renal pelvis called a calyx.