<s>[INST] My 7 year old daughter has frequent bladder infections.They have not been sent for cultures but she has pain during urination and the little test in the doctor s office shows it all the time.In the past 3 months she has had 3.This last one the doctor sent away for cultures.She has microscopic blood but no growth in her urine.What could this be?Her Kidney ultrasound was fine.She hasn t had one on her bladder. [/INST] Hi.... by what you quote (including the Lab reports and cultures), and keeping in mind the fact that she is a female child, the only other possibility which I can suggest is worm infestation. It is very common for the worms to crawl from the perianal region into the urethral opening and cause these symptoms. I suggest you use a course of deforming medication, on suggestion of your pediatrician, as this is a prescription Chat Doctor. Regards -  </s>