Fallenstar said:
How often do you change the needle on your pen?
Do you change it every time you do an injection?
....
Have any of you had an abscess or infection at your injection sites? Can this happen with not enough needle changing?
How often were you told to change your needles?
I used to never change it despite being told to change it every time. I now change it every time because there's no excuse not to really.
During the time when I didn't, I managed to get a nasty scar on my right arm which is like a matching scar with my TB jab one on my left arm - all thanks to a site getting infected (seriously, it had stuff pouring out of it when it finally had enough of being angry - my sister: ew! me: COOL!). The scar still hasn't gone and I doubt it ever will now.
When I did the DAFNE course my nurse explained that another danger of not changing the needle was the fact that insulin can crystalise in the needle. This shocked me and I decided then that I really should stop being lazy.
Changing your needle every time has got other benefits too:
~You can protect loved ones from harm by removing the needle (if they come across your kit and don't understand what it is - eg, a baby copying your diabetic behaviour).
~If you need to "milk" your pen before you inject, the cap bit that the needle comes in makes a great place to squirt the insulin (This removes the chances of you stinking of insulin - yes, I used to do it on my clothes!).
~Get a lot more use out of your sharps bin - there's a reason they're available on prescription!
Once upon a time I did use the same finger pricking needle for about 4-5 months but that was much sooner nipped in the bud in comparison lol. I dread to think what a difference it would have made to my blood results - my results must be been incorrect every time thanks to that idea! There's a reason why we need clean hands and a fresh clean needle every time after all, eh! XD
Edit:
I can't believe I forgot another benefit of changing either every time! It makes it more comfortable! A new needle is much better than an old blunt needle because there's less lubricant on the old needle as a result of over use (this is why they have a use by date too).