Hi, I'm new here. This concerns a relative who has has ongoing urinary issues the past few months. She's had urine infections come up with a few urine tests. Now two of the recent tests showed no infection(this included further lab testing), but the results show blood in the urine. She also had a kideny CT scan that came up normal. She now has to take a scope tests to look inside her bladder area. I'm worried now that this can indicate she has a tumor causing this bleeding since they couldn't find any infections or stones as the cause. What are some causes of blood showing up in urine? Does indicate a tumor?