 [ Symptoms ] can you have a utibladder infection even if urinalysis done by a lab is negative for bacteria  ua also negative for everything else  [ Disease ] it is the urine culture not the routine urinalysis that gives the definitive answer keep in mind that nearly 50 of women with classic urinary tract infection symptoms burning on urination frequency and urgency do not have a uti other causes such as urethritis urethral irritation from clothingsoapssexual activity and the various types of vaginitis should be considered as other possibilities