Thyroid nodule? 90% don't know they have one

The thyroid is a small gland but vital for metabolism, energy, the immune system and mood. Many people think a simple blood test is enough, but experts say that may not be the case. Here are 10 key points on thyroid health and when to consider an ultrasound.

1. Ultrasound shows more than blood tests
   TSH, fT3, fT4 and antibodies such as anti-TPO or anti-TG provide important information, but they don’t always detect structural changes. According to clinicians, only a thyroid ultrasound can identify nodules, cysts or vascular changes before alterations appear in blood results.

2. A small thyroid can signal problems
   A reduced thyroid volume may indicate chronic dysfunction. Associated symptoms include:

• persistent fatigue

• feeling cold in the extremities

• unexplained weight gain

• brain fog

• low libido
  Hidden issues may exist even with a normal TSH.

3. Detecting Hashimoto’s before antibodies
   Ultrasound can show features of autoimmune thyroiditis before antibodies are detectable, enabling a more effective preventive approach.

4. Thyroid, fertility and pregnancy
   Hidden thyroid alterations can affect fertility, raise the risk of miscarriage or preterm birth, and cause pregnancy complications. Caring for the thyroid also protects the baby’s health.

5. It starts in the gut and with diet
   Gut health influences thyroid function. Excess gluten, refined sugar and ultra-processed foods can heighten inflammation and antibodies, while probiotics, fibre, fresh vegetables and ferments help regulate the immune response.

6. Ultrasound can also aid early cancer detection
   Studies show thyroid nodules are often found without prior symptoms. Preventive ultrasound can make the difference for early diagnosis and improve the chances of successful treatment.

7. Don’t ask for volume only
   When requesting a thyroid ultrasound, ask for full reporting including gland volume. An unusually small size should be treated as a red flag.

8. Don’t supplement iodine blindly
   Both deficiency and excess iodine can harm the thyroid. Experts recommend checking 24-hour urinary iodine before supplementing, and ensuring selenium, zinc, iron and vitamin D3 are adequate for proper utilisation.

9. Is ultrasound expensive? No—and it’s worth it
   It’s quick, painless and non-invasive. Given its value for prevention and early diagnosis, the cost is modest. Don’t wait for symptoms: a preventive scan can be pivotal.

10. Comprehensive assessment is key
    A complete thyroid work-up includes:

• Ultrasound

• fT3 / fT4

• Anti-TPO / anti-TG antibodies

• Gut profile

• Iodine status

Conclusion
If you notice tiredness, unexplained weight changes, poor concentration or fertility difficulties, don’t assume everything is fine. Specialists remind us that a thyroid ultrasound can detect changes conventional tests miss. Early diagnosis can make a significant difference to your health.