I am on Warfrin, and have noticed a small amout of blood in my urine in the past but it airways seemed to go away auite soon, in fact, have given a blood sample during a physical in recent past with no concern. I have been diagnosed with a hernia, which seems to bother only once in a while, and have been given the advice by a home visit nurse, that as long as it does not bother a lot, and can be pushed back in, it should be ok to be left untreated, especially since I am taking Warfrin for a mechanical mito valve. Recently I have noticed more blood in my urine, and it does not seem to be going away. Is this somthing i should be real concerened about, and can it be from the hernia, which I have had for at least 2 years?