Below is an instruction from Human. Write a response.
    ### Instruction:
    What are the complications of Pyelonephritis: Kidney Infection ?
    ### Response:
    Most people with pyelonephritis do not have complications if appropriately treated with bacteria-fighting medications called antibiotics.
                
In rare cases, pyelonephritis may cause permanent kidney scars, which can lead to chronic kidney disease, high blood pressure, and kidney failure.
    