I am 64 yrs old and have stopped having my period for ten years. Over the last few months I have had blood in my urine. The first time I went to dr. s I was told I had a uti, went on antibiotics for five days and then I was fine. I should mention there was not much blood at all but there was discomfort upon urinating. Two months later it happened again, also put back on meds, at this time there was no discomfort upon urinating. Well last night I had blood again, although it was not much at all. No discomfort with urinating. Have not gone back to the dr. yet, what could be going on???