Taking warfarin can increase your chances of bleeding
either internally where you cannot see or from nose
, ear, in stool or in urine. However, if there is a need and you are not taking it, it can increase your chances of blood clots. Both are equally dangerous. So if you are reluctant to take warfarin, you should go for the international normalized ratio (INR) test. Normally patients on blood thinners are kept at an INR of 2.0 to 3.0.