Hello, Thanks for posting on HCM, You are experiencing the symptom known as hematuria which could as a result of one of multiple causes. Complicated UTI is just one of the causes but it is not always in all instances that it maybe the cause. I have had many instances with patients that will present with hematuria without any other symptoms and end up determine the presence of kidney stones. Kidney stones can indeed exist without any pains and the only symptom present is hematuria/blood in urine. Hematuria can be caused by menstruation, vigorous exercise, sexual activity, viral illness, trauma, or infection, such as a urinary tract infection (UTI). More serious causes of hematuria include - cancer of the kidney or bladder - inflammation of the kidney, urethra, bladder, - polycystic kidney disease - blood clots - blood clotting disorders I am of the opinion that you do an abodminal and pelvic ultrasound. You will have to in the mean time, drink some much clear fluids while waiting for the culture results. This will help flush your kidneys in case of any stones. hope this helps hope this helps