Do I have Hashi's?

I was diagnosed in Aug '16 with underactive thyroid after months of feeling like death. Still not much better. But anyway,

My question is do I have Hashimotos?

I've never had it confirmed or even mentioned.

At the end of January this year my bloods were:

TSH 1.35 mu/L (0.3-5.0)

FT4 9.2 pmol/L (8.4-19.1)

Anti Thyroid peroxidase 16.12 IU/ML (0-34)

If I do not have hashimotos? I wonder why I have an underactive thyroid?


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2 Replies

  • Lbstyle,

    90% of hypothyroidism is caused by autoimmune thyroid disease (Hashimoto's) but 10% is congenital, due to thyroidectomy or RAI, or is idiopathic (unknown cause).

    Your thyroid peroxidase antibodies are negative for Hashimoto's. This doesn't conclusively rule out Hashimoto's because some people have negative TPOab but may be positive for thyroglobulin antibodies which NHS rarely tests. You can order private thyroid antibody tests via

  • Great thankyou x

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