I had my Colonscopy/Endoscopy(?)with biopsis on the 28th of April. Everything was fine till the 2nd of May, when I woke up having to go to the bathroom and blood just poured out of me. Instead of going to the ER at the time, I went back to bed and waited till I had to get up, and when it happened again, I called the doctor they told me to come in in the afternoon, they examed me and said it was my coumadin that I was on (I told him it wasn't that my INR level was high enough to be causing all of this) he told me to get off of it along with the injections that I was on, I felt that since he wasn't the prescribing doctor, that I wasn't going to do as he said.(After I left his office I did go see the cardio doctor upstairs -they're in the same building- they told me I couldn't get off the coumadin) Anyway he told me that if I was still bleeding the next day to call him (didn't seem too concerned) so I called them back the next day, by the time they called back, it was late in the afternoon and they said "if you want to go to the ER than go" -- Well after 36 hours of bleeding, what do you think I would do?? my husband took me, I was admitted after awhile, stayed there for 5 days, being monitored. Loss so much blood that I became anemic. At first, the doctor said he didn't punctured me or anything, but then he said he "probably did". Anyway, doing better now.