Thyroid function

TSH

In short

  • TSH (thyroid-stimulating hormone) regulates the production of thyroid hormones and plays an important role in metabolism.
  • An abnormal TSH level may indicate an overactive or underactive thyroid.
  • Symptoms such as fatigue, changes in weight, palpitations or difficulty concentrating can be associated with an abnormal thyroid function.
  • A blood test measures the amount of TSH in the blood and provides insight into thyroid function. The result of a TSH test is often assessed together with other thyroid markers, such as FT4 and FT3.
  • Thyroid disorders are relatively common and do not always cause noticeable symptoms straight away.
  • Early detection of abnormal thyroid levels can help explain certain health symptoms.
  • Would you like more insight into your thyroid health? A TSH test can provide valuable information.

What is the function of the thyroid gland?

The thyroid is a small organ in your neck that produces hormones. These hormones regulate your metabolism, including how quickly your body uses energy and how your body grows and develops. The thyroid therefore helps ensure that many processes in your body function properly, including your heart rate, body temperature and energy levels.

What are the symptoms of abnormal thyroid function?

If your thyroid is underactive (hypothyroidism), you may feel tired, gain weight, feel cold, develop dry skin or experience constipation. If your thyroid is overactive (hyperthyroidism), you may lose weight, experience palpitations, sweat more, feel nervous or have difficulty sleeping. Not everyone experiences the same symptoms, but changes in energy levels, weight and mood can indicate a thyroid problem.

Where is the thyroid gland located in the body?

The thyroid is located at the front of your neck, just below the larynx (Adam’s apple). It is a small organ that resembles a butterfly, with two ‘wings’ on either side of your windpipe.

Are thyroid problems common?

Thyroid problems are relatively common, particularly among women and people over 40. Many people do not realise they have a thyroid problem because the symptoms can be vague. Every year, tens of thousands of people in the Netherlands develop an underactive or overactive thyroid.

Can you develop thyroid problems later in life?

Yes, thyroid problems can develop at any age, but the risk increases as you get older. Even if you have never experienced symptoms before, you can develop a thyroid problem later in life.

What can affect thyroid function?

Various factors can affect thyroid function. These include genetic predisposition, certain medications, too little or too much iodine (a mineral found in food), stress and conditions in which the immune system attacks the thyroid. Pregnancy can also affect thyroid function.

How can you support a healthy thyroid?

A healthy lifestyle can support your thyroid. Make sure you get enough iodine through your diet, for example from bread or dairy products. Eat a varied diet, exercise regularly and try to reduce stress. Do not smoke, as smoking can negatively affect the thyroid. If you have an increased risk, for example because thyroid problems run in your family, discuss this with your doctor.

Can thyroid problems be treated?

Yes, thyroid problems can usually be treated effectively. An underactive thyroid is often treated with thyroid hormone tablets. An overactive thyroid can be treated with medication that reduces thyroid activity, and in some cases other treatments may be needed. With the right treatment, you can usually function normally again. Regular monitoring is important.

This article is for informational purposes only and is not a substitute for medical advice from a doctor. If your symptoms persist or you are concerned, always contact your doctor.