Can Urinary Tract Infections Affect the Kidneys?

If left untreated, UTIs can continue to spread upward into your kidneys. A kidney infection can lead to serious complications, including kidney damage or a life threatening condition called sepsis.

How do you know if a UTI has spread to your kidneys?

Strong, persistent urge to urinate. Burning sensation or pain when urinating. Nausea and vomiting. Pus or blood in your urine (hematuria)

Can untreated UTI cause kidney damage?

The main danger associated with untreated UTIs is that the infection may spread from the bladder to one or both kidneys. When bacteria attack the kidneys, they can cause damage that will permanently reduce kidney function. In people who already have kidney problems, this can raise the risk of kidney failure.