What can cause a young healthy patient to have blood in urine?

Idiopathic hematuria: Approximately 10% of young normal adults have traces of blood as shown on the routine dip- stick test in the doctor's office. Microscopically 2-3 red blood cells are cosifered normal. This is nothing to worry about.

Causes of hematuria: Hematuria can be caused by any bleeding in the urinary tract. It could be caused by a tumor of the kidney, kidney stones in the ureters or by a bladder tumor, among other things. Have your urine cultured and if you have hematuria with no uti, see a urologist for evaluation . If you do have a uti, have your urine analyzed after the infection to make sure it resolves. If not, see a urologist.