Thyroid produces t3, t4 and calcitonin for calcium absorption. My gland is attacked by immune system and producing nill of these. I'm on eltroxin now, thyroid hormones are replaced orally, what about calcitonin? Some doctors say it will be corrected by replacing thyroid hormones itself, how?it us a different entity right?

Dr. Prabhakar Laxman JatharEndocrinologist46yrs exp

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Mr Rakesh, Thanks for the query. In autoimmune thyroiditis(Hashimoto's Thyroiditis), thyroid secreting cells are affected, leading to less of thyroxine hormone. Calcitonin is secreted by parafolicular cells (C- cells), those also may be affected and there can be certain deficiency of that hormone also. However, that is unlikely to cause any noticeable problem. But it is better to look at the bone health of the patient. as there is a possibility of affection. But there is no obvious need for calcitonin supplement in hypothyroidism. Thanks. 

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