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  • Better Thyroid Health
  • If You Are Undiagnosed
  • If You Are Hypothyroid
  • If You Are Hyperthyroid
  • Related Conditions
  • Having A Baby
  • Help and Support
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If you are undiagnosed

The Basics

An overview of your endocrine system

How your thyroid gland works

What To Look Out For

Comparing signs and symptoms of thyroid conditions

Hypothyroid signs and symptoms

Hyperthyroid signs and symptoms

Next Steps

Getting a diagnosis

Preparing for your appointment

At your GP appointment

Testing

History of thyroid testing

Thyroid function tests

Private testing laboratories

Phlebotomy services

Keep track of your test results

Thyroid antibodies

Deiodinase 2 (DIO2) genetic test

Fine-needle aspiration

Ultrasound scan

Thyrotropin-releasing hormone (TRH) test

Checking for B12 deficiency and Pernicious Anaemia

Biotin deficiency and thyroid tests

We rely on donations so that we can continue to support and campaign for people with thyroid and related conditions.  If you have found our information helpful, please make a donation or become a member.

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  • If you are undiagnosed
  • If you are hypothyroid
  • If you are hyperthyroid
  • Related conditions
  • Having a baby
  • Help and support
  • Further reading
  • About Thyroid UK
  • Help us to help you
  • Become a member
  • Make a donation
  • Fundraising
  • News
  • Shop
  • Contact us
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