Question

Cold and Flu

What causes pain in my arm after a flu shot?

A Answers (1)

  • AStacy Wiegman, PharmD, Pharmacy, answered
    Most flu shots are injected into the muscle, so you may have some pain in your arm after receiving a flu shot. The shot contains an inactivated, or killed, flu virus that prompts your body to create antibodies. Sometimes that reaction leads to swelling for a day or two at the injection site.
Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.
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