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Complications
By Mayo Clinic staffWhen treated promptly and properly, urinary tract infections rarely lead to complications. But left untreated, a urinary tract infection can become something more serious than merely a set of uncomfortable symptoms.
Untreated urinary tract infections can lead to acute or chronic kidney infections (pyelonephritis), which could permanently damage your kidneys. Young children and older adults are at the greatest risk of kidney damage due to urinary tract infections because their symptoms are often overlooked or mistaken for other conditions. Pregnant women who have urinary tract infections may have an increased risk of delivering low birth weight or premature infants.
Women who experience three or more urinary tract infections are likely to continue experiencing them.
