Checking for blood when injecting

[Fenix12]

I was re-reading the injection info and it states you must pull back on the plunger to check for blood. I am confused as to how you could insert a piece of metal into your body and not pull out blood? Can someone explain this to me. Also I did an injection and didn't pull back on the stopper to check for blood, what could failing to do this have done to me because I know alot of people who don't do it.

[DF2003]

exactly. your doing this to make sure your not in a vein or blood vessel.
you see bubbles your good to go, you see blood no-no

[dawgy52]

I some what diagree. Sometimes you will get a small drop in the syringe when you aspirate I think this might be from the original poke through the skin because if you notice every time you pull the pin out you have a drop of blood there. So I think when you asperate and your pulling and theres a vacume meaning that the plunger wont draw out easily then your in the muscle. If your in a vain or blood vessel the blunger will draw much easier and youll get a rush of blood in the syringe.

[Demon Deacon]

if you inject into a vein you risk killing yourself, its that simple

[Demon Deacon]

so aspirate

[BUYLONGTERM]

I some what diagree. Sometimes you will get a small drop in the syringe when you aspirate I think this might be from the original poke through the skin because if you notice every time you pull the pin out you have a drop of blood there. So I think when you asperate and your pulling and theres a vacume meaning that the plunger wont draw out easily then your in the muscle. If your in a vain or blood vessel the blunger will draw much easier and youll get a rush of blood in the syringe.

Hmmm, I have to disagree. I've given myself hundreds of shots. never once when I aspirate does a little bit of blood enter the syringe unless I'm in a vein (which is very rare)