Test ID: B-203
Could Your Thyroid Be the Reason You Feel Exhausted, Cold, or Unwell?
Thyroid dysfunction is one of the most commonly missed conditions — affecting millions of people, particularly women. Symptoms are often dismissed as stress, ageing, or lifestyle issues. If you recognise any of the following, a TSH test could reveal what’s really going on:
- Persistent fatigue or exhaustion that sleep doesn’t fix
- Feeling cold all the time, even in warm environments
- Unexplained weight gain despite no change in diet
- Constipation or sluggish digestion
- Low mood, depression, or feeling emotionally flat
- Slow thinking, brain fog, or poor memory
- Muscle aches, weakness, or cramps
- Dry skin, brittle nails, or hair thinning
- Family history of thyroid disease
- No thyroid check despite symptoms lasting weeks or months
What Is TSH and Why Does It Matter?
Thyroid Stimulating Hormone (TSH) is produced by the pituitary gland and controls how much thyroid hormone your body makes. It is the primary screening marker for thyroid function:
- High TSH — suggests the thyroid is underactive (hypothyroidism), meaning it’s not producing enough hormone. This is the most common thyroid disorder, affecting up to 20% of women over 60.
- Low TSH — suggests the thyroid is overactive (hyperthyroidism), producing too much hormone, or may indicate a pituitary problem (secondary hypothyroidism).
- Subclinical thyroid dysfunction — TSH can be abnormal even when other thyroid markers appear normal, affecting an estimated 4–10% of the general population.
Optimal TSH is generally considered to be between 0.5 and 2.0 µU/mL. Many people with TSH in the “normal” lab range still experience symptoms — making personalised interpretation essential.
What This Test Measures
- TSH (Thyroid Stimulating Hormone) – The key marker for assessing thyroid function, used to screen for hypothyroidism, hyperthyroidism, and subclinical thyroid dysfunction
How It Works
- Order your kit — delivered to your door
- Collect your sample at home — a simple finger-prick blood spot; no clinic or GP visit needed
- Post your sample to our CLIA-certified laboratory using the instructions provided
- Receive your results by email within 3–5 working days of the lab receiving your sample
What You Get With Your Results
Your personalised report includes:
- Your TSH level displayed clearly in graphics and numbers
- A written interpretation by a Hormone Specialist PhD Doctor
- Guidance on what your result means and what to do next
Who Is This Test For?
This test is suitable for men and women who want to:
- Investigate symptoms that may be linked to thyroid dysfunction
- Screen for hypothyroidism or hyperthyroidism without a GP appointment
- Check thyroid function if there is a family history of thyroid disease
- Monitor thyroid health as part of a broader hormone or wellness check
- Get a specialist interpretation rather than a standard lab reference range
Key Information
- Collect your sample from home and post to our lab — no clinic visit required
- Results delivered by email within 3–5 working days
- Laboratory fee included — no hidden costs or additional charges
- Valid for 12 months from the date of purchase
- Analysed by a CLIA-certified laboratory with over 11 million tests performed
- Customers are responsible for posting their sample to the laboratory