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I had a tetanus shot about three months ago. The muscles around the injection site hurt the first day, everything hurt the second day, then just the site the third day, gone the fourth. Now, three months later, I have the same pain in the muscle around the injection site.

What might this mean?


Call your doctor at once if you have deep, aching pain and muscle wasting in the upper arm(s). This rare but serious reaction to a tetanus vaccine may begin 2 days to 4 weeks after you receive the vaccine, and could last up to many months.

Becoming infected with tetanus is much more dangerous to your health than receiving this vaccine. However, like any medicine, this vaccine can cause side effects but the risk of serious side effects is extremely low.