Daughter has uti symptoms that come and go once a week. negative urine culture. does not have back pain or fever or other symptoms.

Probably cystitis: She may need to get her urine test repeated a few times and get examined by her pediatrician to r/o urethritis type problem that may be recurring. Some girls who bathe in tub get such symptoms as well for which a change in such habits and reinforcing genital hygiene can help.

Local irritation: These are often a product of sitting in soap suds in a bath, excessive soaping of the genitals or contact with scented toilet tissue, bath oils, etc. If these are not totally removed they can leave a film on the genitals & the kid digs at it while half asleep.The trauma will result in such a pattern. Avoiding the exposures can sometimes end this in a week.