Why are jabs given in specific places?

Question:

I just had Hepatitis A vaccination in the muscle on my upper left arm. I was wondering why some injections are given in muscles and others are given straight into blood vessels. not only that, but also what purpose is there in injecting the vaccine into muscle at all?

Answers:
I'm not sure why some injections are given in the vein and some in the muscle tissue, but there is a good reason for intramuscular injections. Your muscles are chock full of smaller blood vessels in order to supply them with fuel and oxygen - injections given there almost instantly pass into your bloodstream

Each nurse prefers easier targets.. more fatty areas are better for injections

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Why are jabs given in specific places?

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