Which symptoms are common in acute pyelonephritis?

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The most common cause of urinary tract infection is invasion into the urethra of Escherichia coli, a type of bacterium that normally inhabits the bowel. — urinary tract infection The most common cause of urinary tract infection is invasion into the urethra of *Escherichia coli*, a type of bacterium that normally inhabits the bowel.

Acute pyelonephritis is an infection and inflammation of the kidney tissue and the renal pelvis. Common symptoms associated with this condition include:

Fever and chills1
Pain or aches in the lower back and flanks1
Tenderness in the kidney region1
Bladder inflammation1
Presence of white blood cells in the urine1
A high bacterial count in the urine1

These symptoms typically arise as the infection affects the renal structures, potentially leading to the formation of abscesses within the kidney tissue. Treatment generally involves the use of antibiotic drugs to suppress bacterial growth.1