"How do you keep from getting a Bruise does anyone know Thanks"
First of all, as I was informed by someone here (Emily?) that some individual spots on one's abdomen, thigh, etc. seem to be more sensitive to pain, bleeding, and bruising. Just skip them.
I have also noticed that not pushing the needle in perfectly straight can cause both bruising and sometimes amazing pain. There are two things to look out for:
1. When I tried just snapping on the snap-on needles, they would sometimes not end up EXACTLY parallel to the pen. I finally gave up, and always screw on my needles the old slow way.
2. With one of the super-cheapie brands of needles supplied by my HMO, the needle (the cannula, as they call it) is not always at an EXACT right angle to the plastic surface it's stuck in. It's close enough, though, that you can miss the difference if you're not looking for it. If I try to push the needle in along the axis of the pen, it turns out that I'm pushing it in at a strange angle. It can be very painful and leave a dramatic bruise, and it more likely to bleed a little. The solution is always to check, and always to carefully push the needle in along its own axis, which might not be the axis of the pen.
Two pharmacists said that they've heard this before, and one said that he would be happy to sell me BD needles privately. They would cost me only 25 times what I pay the HMO for Brand X needles. If I were a zillionaire....