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A 44-year-old female asked:

i had a tetanus shot 2 days ago. it is a hard lump where i got the shot and my arm really hurts there. is this normal?

2 doctor answers2 doctors weighed in
Dr. Derrick Lonsdale
Preventive Medicine 73 years experience
No: But it will settle down if you leave it alone.
Dr. James Ferguson
Pediatrics 46 years experience
Yes: The material is injected into muscle tissue and may produce a local reaction like a knotted up area in the muscle. The tenderness & knotted area should gradually fade over several days to weeks.

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Last updated Jul 23, 2018
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