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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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What Causes Numbness At The Site Of Intramuscular Injection?

I had a intramuscular injection on Wednesday in my upper arm, since yesterday the site of the injection is completely numb. I can touch, pinch or even prick with something sharp without feeling any sort of sensation other than pressure due to the tissue around this spot... It s about 2 in diameter(the spot that is numb.). Do I need to contact my GP or will this go away on its own?
Wed, 30 Jul 2014
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Internal Medicine Specialist,  's  Response
Hello! It appears the injection hit a small nerve carrying sensations from that area.
The extent and duration of numbness depends on the severity of damage to the nerve and its covering (nerve sheath) - it is possible some regeneration may occur but the time frame of recovery is, frankly, unpredictable. All the best!
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What Causes Numbness At The Site Of Intramuscular Injection?

Hello! It appears the injection hit a small nerve carrying sensations from that area. The extent and duration of numbness depends on the severity of damage to the nerve and its covering (nerve sheath) - it is possible some regeneration may occur but the time frame of recovery is, frankly, unpredictable. All the best!