I know somebody who has microscopic blood in thier urine, it doesnt burn when they pee, and it cant be seen with the eye. He says his mother and sister have the same thing, and his maternal grandmother has it as well. According to the doctors this is ok. Has anybody ever heard of such a thing or any ideas or inputs ive always heard any blood in the urine is bad..

( his father does not have this problem he says this was passed down from the mothers side)