Thyroid UK
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4 year old daughter -hypo?

Just after some advice please guys. My daughter had a raft of tests due to her hearing loss and her thyroid was flagged up in August, they re-tested in October, results as follows:


Tsh: 4.29 (range 0.27-4.2)

Ft4: (secretary couldn't find result)


Tsh: 3.52

Ft4: 10.9 (range 10-21)

I have hypothyroidism and my mother does , my daughter displays symptoms in my opinion and her results are showing over or just scraping in (but as we know that doesn't make her well!)

What would you do from here? Hospital have closed any concerns with thyroid because she's in range, just.

Do i ask gp to re-test in a few months?

Thanks x

2 Replies

Ask your doctor to check you daughter for thyroid antibodies and FT3. She may beginning to get an Autoimmune Thyroid Disease (hashimotos) if she has thyroid antibodies. In October her FT4 was the bottom of the range so she may not have sufficient T3 to function healthily. Excerpt:


T4 converts to T3 and is the only thyroid hormone actually used by the body's cells.

The approx. reference range for Free T3 is 4 to 8.3

We at Thyroid UK believe that you need to know your Free T3 level too because this will often show low if you are not converting, and high if you have blocked receptor cells. Even if you are converting, the body needs the extra T3 that a normal thyroid produces. There has been some research to show that people feel better on a mixture of Thyroxine (T4) and Triiodothyronine (T3). Effects of Thyroxine as Compared with Thyroxine plus Triiodothyronine in patients with hypothyroidism – The New England Journal of Medicine Feb.11, 99 Vol. 340. (Click here for this article).

With all of these tests, your results could be anywhere within the range and you would be classed as "normal". If you are at the very edge of the range, either at the bottom or at the top, you could be classed as "borderline". Neither you nor your doctor truly knows what your normal is, if you did not have a blood test done before you became ill. There are also particular reasons why the blood tests remain in the normal range. If you are not converting from T4 to T3 or if your cells are not taking up the T3 normally, your T4 levels and your TSH levels will still show as normal.

If doctor refuses:


Ticklek, young children tend to have higher TSH than adults. Your daughter's TSH is high and may come down naturally as she grows, but you should ask for thyroid levels to be retested in a few months.


I am not a medical professional and this information is not intended to be a substitute for medical guidance from your own doctor. Please check with your personal physician before applying any of these suggestions.


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