white flakes in urine and flank pain

i have had white flakes in my urine for 4 months with low back pain.  i have had mri's and a ct and everything comes back fine.  i have no back problems but this pain in my lower back and front pelvic area.  when i mention this to my dr they order urine test's but everything tends to be normal as well except i have had a couple of uti's.  i haven't had one in a couple months but the white flakes are still there each time i urinate.  the doctor has sent my urine for cytology as well and it came back normal.  i'm very puzzled about this so i figured i would see if you had any answers for me or what i could do to determine what this could possibly be.  my thirteen y/o has also had the same problem for a couple of months now and they said the same thing about her urine.  although she has had some protein in her urine and white blood cells. any information would be helpful, thank you for your time.

[Kevin Pho, MD]

Nothing jumps to mind as to what could be causing the white flakes in the urine.  The normal urine tests as well as cytology is would make infection and bladder cancer less likely.

The imaging studies would make anatomical masses less likely.

I would consider a urology evaluation.  A cystoscopy to further evaluate the lower GU tract can be considered.

These options can be discussed with your personal physician.

Followup with your personal physician is essential.

This answer is not intended as and does not substitute for medical advice - the information presented is for patient education only. Please see your personal physician for further evaluation of your individual case.

Kevin, M.D.
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