All blood tests

Blood test

Thyroid Check

How well your thyroid is working — the gland in your neck that sets the pace of your metabolism.

Thyroid Check — blood test kit box

What it is for

  • Thyroid Check

    Why people check it

    A thyroid that works too slowly or too fast is hard to tell apart from everyday tiredness or stress. A blood test is the clear way to know.

  • Thyroid Check

    Who it is for

    People living with type 1 diabetes, Addison's disease or coeliac disease, and people taking medicines such as lithium or amiodarone, are advised to check regularly. A slow thyroid is also more common in women over 60 and during pregnancy.

  • Signs

    When it works too slowly

    • Tiredness
    • Feeling the cold
    • Weight gain
    • Dry skin and thinning hair
    • Poor memory and concentration
    • Low mood
  • Signs

    When it works too fast

    • Unexplained weight change
    • Sweating
    • Tremor
    • Feeling the heat
    • Lower libido

How to give your sample

The app shows which ways are open for this test before you pay.

  • A kit at home

    A finger-prick kit by post, with the return postage paid. The app walks you through it.

  • A collection point

    A blood sample taken at a collection point near you, found from your postcode in the app.

  • Someone comes to you

    A professional takes the sample at your home or office, on the day you choose.

The result arrives in the app.

It is yours — keep it, or send it to the doctor of your choice: only a doctor can say what it means for you. This page explains what the test is for; it does not replace a consultation.

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