A member asked:

Can bladder infections turn into kidney infections?how can you tell? my lower back is killing me and my ms fatigue is crazy worries me something is up

7 doctors weighed in across 3 answers

Depends: Simple bladder infections don't turn into kidney infections unless there is an obstruction or dysfunction of the bladder or ureter outlets causing a back flow into the kidneys. Unlike simple bladder infections, kidney infections usually have associated chills, fever and at times discomfort in the back or flank area. Incomplete bladder emptying has to be avoided.

Answered 1/5/2019

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UTI: Ascending infection is one of the more common mechanisms by which pyelonephritis (kidney infection) occurs, so the answer is yes. This does not necessarily mean, however, that your back discomfort is due to UTI and you should be seen by your doctor and diagnosed appropriately.

Answered 3/22/2020

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You bet: If you don't treat bladder infections, possible pyelonephritis can ensue.. Testing can conclude what is occurring, and evaluation by urologist may be useful. Do you have kidney stones??

Answered 1/6/2015

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