From MMR boosters to tetanus, you’ll probably get a lot of shots in your life. And one thing you might notice is that some of them don’t feel like much, but some of them can make your arm really sore! Why is that?
If you have ever received a vaccination, you know your arm may feel a bit sore for a few days after the fact. The pain you are experiencing is usually soreness of the muscle where the injection was given. This pain is also a sign that your immune system is making antibodies in response to the viruses in the vaccine.
Watch this video to know more!