My husband as stage 3 kidney disease which is under good control, but has been getting up several times each night to urinate. His doctor has had him on Flomax, but is not helping so he saw a urologist lady week. He checked to see if his bladder is emptying completely and it is not. The urinalysis showed microscopic blood in his urine. He said microscopic. He had just had a urinalysis from the kidney specialist three months ago and it was normal. The urologist said he needs an ultrasound of his bladder and a cystoscopy to rule out cancer. I have looked up why one might have blood in the ursine and there are many reasons other than cancer. I am worrying as to why he suspects cancer without any other signs. Any ideas?