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A 39-year-old member asked:

i had hypothyroidism and now i have hyperthyroidism. whatup?

2 doctor answers6 doctors weighed in
Dr. Cayce Jehaimi
Pediatric Endocrinology 21 years experience
Not unusual: Although the opposite is more common (i.E converting from hyperthyroidism to hypothyroidism). You may have been misdiagnosed with hypothyroidism as both tend to have positive antithyroid antibodies and the early phase of hyperthyroidism can manifest with only TSH being low. Regardless, you should seek an endocrine evaluation and perhaps even a thyroid scan to confirm your diagnosis. Good luck.
Dr. Giuseppe Barbesino
Internal Medicine 33 years experience
It can happen: Most people with autoimmune thyroid disease have either hypo or hyperthyroidism. Many people with hyperthyroidism may end-up with hypo as a consequence of treatment or spontaneously. The opposite is the least common variation, but it can happen. People with hypo may develop graves' disease, or "painless thyroiditis". Treatment is very different so an accurate diagnosis is critical.

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Last updated Jan 7, 2018
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