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Blood test

Thyroid Check

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

  • 2markers measured
  • UKASaccredited laboratory
  • Next dayresult, after the lab receives your sample
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Thyroid Check: blood test kit box

What it is for

  • Thyroid Check

    Why people check it

    Thyroid problems are common but hard to pick up without a blood test. A thyroid that works too slowly or too fast can cause tiredness, mood changes and weight changes.

    Can be done with a finger-prick kit at home, at a collection point or with home collection on request.

  • Three generations of women in a studio portrait
    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. Both a slow and a fast thyroid become more common after 60, especially in women; a slow thyroid is also more common 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
    • Heavy periods
    • Reduced fertility
  • 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 kit arrives by Royal Mail. You collect the sample and post it back the same day, Monday to Thursday, in the prepaid envelope that comes with the kit, at a Royal Mail priority postbox. Collection instructions come with the kit.

  • A collection point

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

  • Home collection: on request

    You ask in your account, and the team replies with a price and a date. Nothing is charged now.

How it works

See how to choose and buy your test in under a minute.

See every step

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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