The pain caused by kidney stones occurs when a stone becomes lodged in the ureter, the slender tube that connects the kidney with the bladder. Urine flow is then blocked, which causes urine to back up into the kidney. The kidney then swells and enlarges, stretching the pain-sensitive capsule, or thin covering around
Pyelonephritis is an inflammation of one or both kidneys with variable manifestations. It may be acute, relapsing or chronic. The complications of this disorder are hypertension, chronic infection, renal insufficiency and renal failure. The course is extremely variable but typically the chronic disease progresses extremely slowly, with patients having adequate renal function for more than 20 years after onset.
Kidney infection typically occurs when bacteria enter your urinary tract through the urethra and begin to multiply. Bacteria from an infection elsewhere in your body also can spread through your bloodstream to your kidneys. Kidney infection is unusual through this route, but it can occur in some circumstances — for instance, when a foreign body, such as an artificial joint or heart valve, gets infected. Rarely, kidney infection results after kidney surgery. Can you die from a kidney infection?
In most cases, you don’t but it is possible.
