Hi Roxie - I have "skinny rolly" veins - that are very visable but I've been stabbed up to 7 times before to get blood or IV in... I tried to use a different vein every time to avoid scar tissue building up in one area - also, applying a bit of heat like a warm towel to your arm before the infusion will help those veins pop out and be easier to stick, along with, all Billye mentioned, being hydrated.....