Can a UTI Cause a Kidney Infection?

April 27, 2024 | by Yashaswi Pathakamuri | Posted in FAQ's

Urinary Tract Infection (UTI)

Yes, a urinary tract infection (UTI) can lead to a kidney infection, also known as pyelonephritis. Pyelonephritis occurs when bacteria from the urinary tract travel upwards and infect the kidneys.

Here’s how it happens:

  • Bacterial Ascent: In a UTI, bacteria typically enter the urinary tract through the urethra and multiply in the bladder, causing symptoms such as burning during urination, frequent urination, and urgency. If the bacteria continue to multiply and spread, they can ascend further up the urinary tract, reaching the ureters (the tubes that carry urine from the kidneys to the bladder) and eventually the kidneys.
  • Kidney Infection: When bacteria infect the kidneys, it results in pyelonephritis. This condition can cause symptoms such as fever, chills, flank pain (pain in the back or side below the ribs), nausea, vomiting, and general malaise.

Pyelonephritis is a more serious condition than a typical lower urinary tract infection because it involves the kidneys, which are vital organs responsible for filtering waste and regulating fluid balance in the body. If left untreated, pyelonephritis can lead to complications such as kidney damage, bloodstream infections (sepsis), or even kidney failure.

If you suspect you have a UTI or are experiencing symptoms of a kidney infection, it’s crucial to seek medical attention promptly. A healthcare provider can perform tests to diagnose the infection and determine its severity. Treatment typically involves antibiotics to eradicate the bacteria and prevent complications. In the case of pyelonephritis, hospitalization and intravenous antibiotics may be necessary, especially if the infection is severe or if the person is at risk of complications.

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