I don't get blood taken very often but my last blood sample was taken on Sunday and this has got worse and feels like there is a pocket of blood as there is a lump just down from where the nurse finally succeeded. She was sucking air on the first attempt which was about an inch to the left, the second attempt worked but was not a nice easy sample and this is the arm that has always been easy and most of the time the doctor manages to get blood from. I post my right arm as well which is way better after 3 days after having the canula removed after two days of it being in. Should I be worried about this or will it just get better anyone else experienced a blood test that did this? (for once I'm not Googling it) Left arm which is getting worse. Right arm which had a canula inserted for 2 days.