I take coumadin regularly as I have an aortic valve replaced in 1989. ~ 5 days ago I was seating in a not good chair that forced me to put pressure on my buttocks and after a while, when standing, I was unable to walk with my right leg as there was awful pain in my upper right thigh. There was also a swelling formed from my uper thigh to the buttock, with no brusing. I placed hot pads and had ibuprofen . The swelling has reduced some after 4days. This is day 5 and I can walk a bit more with the help of two canes (left leg is ok). Today I saw some bruises down in my leg in a places lower tha the swelling area which did not showed bruising until now. 2days ago my INR (supposed to be in the range of 2.5 to 3.5) was a little low and around 2 so I assume the bruises are not due to bleeding for high INR. Can internal bruise in the swelling area go down and become external? Your advice will be gratefully appreciated.