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What kind of complications can result from a nerve block injection?

Donna Hill Howes, RN
Family Practitioner

Complications from nerve block therapy are rare. But they can be caused by the drugs or damage from the needle. Overdoses of local pain-relievers can damage nerves or cause seizures or heart-related problems. High doses of corticosteroids can affect the adrenal glands or raise blood sugar in people with diabetes. Injection sites may become infected. A needle may accidentally injure a nerve, artery, or other nearby tissue or organ. 

This answer was adapted from Sharecare's award-winning AskMD app. Start a consultation now to find out what's causing your symptoms, learn how to manage a condition, or find a doctor. 

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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.