BLOOD IN URINE?

THE DR.'S TOLD MY MOTHER THAT SHE HAS BLOOD IN HER URINE. THE LAST TIME SHE WENT THERE WAS A LITTLE, NOW THERE'S EVEN MORE THEN BEFORE.
THEY DON'T SEEM TO KNOW WHY. HAS THIS HAPPENED TO YOU OR SOMEONE YOU KNOW BEFORE? IF SO, CAN YOU PLEASE HELP ME HERE SO I CAN MAKE SURE MY MOTHER IS GETTING ALL OF THE NECESSARY TEST PERFORMED ON HER TO FIND ANSWERS AND A CURE.
THANK YOU, DIANE Tweet