A member asked:

40 leukocytes in urine but neg for nitrites. ? been having uti symptoms but only mild.

2 doctors weighed in across 2 answers

Culture?: A urine culture should be performed if it hasn't. This can identify a bacterial infection if that is the cause of the leukocytes in the urine. It is possible to have a UTI and have negative nitrites. Leukocytes in the urine can also be caused by inflammation anywhere in urinary tract up to kidneys.

Answered 7/8/2016

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Dr. Jay Park answered

Possible UTI: Some of bacteria causing UTI such as Enterococcus does not produce nitrites. You need an urine culture to be sure.

Answered 11/11/2018

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