Test ID: B-220 | Sample Type: Dried Blood Spot | Specialist Doctor Report Included
Could Your Thyroid Be Behind Your Fatigue, Weight Gain, or Low Mood?
Thyroid dysfunction is one of the most commonly missed conditions in women — affecting up to 1 in 8 at some point in their lives. Symptoms often develop gradually and are easily dismissed as stress, hormonal changes, or the demands of daily life. If you recognise any of the following, a comprehensive thyroid test could reveal the root cause:
- Persistent fatigue or exhaustion that sleep doesn't fix
- Unexplained weight gain or difficulty losing weight
- Feeling cold all the time, or conversely, intolerance to heat
- Brain fog, poor concentration, or memory problems
- Low mood, depression, or anxiety
- Hair loss, thinning hair, or brittle nails
- Dry skin or puffy face
- Constipation or digestive sluggishness
- Irregular or heavy periods, PMS, or fertility concerns
- Difficulty conceiving or recurrent miscarriage
- Symptoms worsening around perimenopause or menopause
- Already on thyroid medication and wanting to monitor treatment
Why a Full Thyroid Panel Matters — Especially for Women
A standard GP thyroid test typically only measures TSH — which can miss significant thyroid dysfunction, particularly in women whose symptoms fluctuate with hormonal changes across the menstrual cycle, pregnancy, and menopause. This comprehensive panel measures six thyroid markers, giving a complete picture of thyroid hormone production, conversion, autoimmune activity, and iodine-related health:
- TSH (Thyroid Stimulating Hormone) — The primary screening marker; high TSH suggests hypothyroidism, low TSH suggests hyperthyroidism
- Free T4 (fT4) — The main hormone produced by the thyroid; assesses production capacity
- Free T3 (fT3) — The active thyroid hormone that drives energy, metabolism, and cellular function; many women have normal T4 but poor T4-to-T3 conversion
- Total T4 (TT4) — Measures both bound and free thyroxine; provides a broader view of thyroid output
- TPO Antibodies (TPOab) — Elevated levels indicate autoimmune thyroid disease such as Hashimoto's thyroiditis, which is significantly more common in women
- Thyroglobulin (Tgbn) — Linked to iodine storage and thyroid hormone production; elevated levels may suggest iodine deficiency or thyroid dysfunction
What Conditions Can This Test Help Identify?
- Hypothyroidism — underactive thyroid; affects women up to 10x more often than men
- Hyperthyroidism — overactive thyroid, including Graves' disease
- Hashimoto's thyroiditis — autoimmune attack on the thyroid, disproportionately affecting women; often missed without TPO antibody testing
- Subclinical thyroid dysfunction — abnormal TSH with normal T4/T3; a common cause of unexplained symptoms in women
- T4-to-T3 conversion issues — normal T4 but insufficient active T3; frequently seen in women, particularly during hormonal transitions
- Thyroid-related cycle irregularities — thyroid imbalance can directly affect oestrogen, progesterone, and menstrual health
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
- All six thyroid markers displayed clearly in graphics and numbers
- A written interpretation by a Hormone Specialist PhD Doctor
- Guidance on what your results mean and what to do next
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
