My baby girl is about to be 3 months old & has a little trace of blood in her morning pee diapers for the past two weeks. I took her to the emergency room where they tested her urine & said everything was fine but she did have irritation of the vulva. We put a prescribed topical antibiotic on her twice a day & it did nothing, she would still wake up with a little blood in her diaper. It does not seem to bother her but I'm wondering what is the cause? I just started my period so maybe my hormones are messing with her? Or maybe because she sleeps through the night & goes so long without peeing, anyone out there have any suggestions?