A possible after effect of thyroidectomy is recurrent nerve palsy as this nerve could be traumatized during surgery. Complications to the voice, swallowing or both can occur. If the four parathyroid glands which are located close to the thyroid are accidentally removed or injured, the patient’s blood calcium levels may drop resulting in tingling, muscle cramps and numbness. A severely low calcium level leads to throat spasm or a seizure.
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