Microscopic blood in urine you had bad pain in left flank but all pain apart from a dull ache now and again I've had an ultrasound scan on kidneys done and also a cytoscopy and psa test which was ok?

Microscopic blood in urine, along with left flank pain, can indicate various issues, such as kidney stones or a urinary tract infection. Since you've undergone an ultrasound, cystoscopy, and PSA test with normal results, it's essential to follow up with your healthcare provider for further evaluation. They may recommend additional tests or imaging studies to pinpoint the cause of the symptoms. Maintaining hydration and monitoring any changes in your symptoms is also important.