Injection Sites

This is a very newbie question, but when using injectibles, what is the protocol for using the syringe properly? Can the site be anywhere on the body? Does the needle need to go into muscle? If so, how deep? Why is the ass a preferred spot? I would think it would be easier to get into muscle other places. Thanks.

The needle does need to go into the muscle, IM means intermuscular. The glutes are a good injections site because it is a very large muscle and does not have the vascularity (veins) of the thighs. Use the upper/outer area of the glutes for your injection site. best thing to do is search the internet for anatomical diagrams so you know exactly where the needle goes. You don’t want to hit the syatic nerve, a vein, or the bone.