Thyroid Gland

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Thyroid Gland

The thyroid gland is a small butterfly-shaped gland in the neck, just in front of the windpipe (trachea). One of its main functions is to produce hormones that help regulate the body's metabolism (the process that turns food into energy). These hormones are called triiodothyronine (T3) and thyroxine (T4). Many of the body's functions slow down when the thyroid doesn't produce enough of these hormones.

Underactive Thyroid :

An underactive thyroid gland (hypothyroidism) is where your thyroid gland doesn't produce enough hormones. Symptoms of an underactive thyroid are often similar to those of other conditions, and they usually develop slowly, so you may not notice them for years.

You should see your GP and ask to be tested for an underactive thyroid if you have symptoms including:

  • Tiredness
  • Weight gain
  • Depression
  • Being sensitive to the cold
  • Dry skin and hair
  • Dry skin and hair

The only accurate way of finding out whether you have a thyroid problem is to have a thyroid function test, where a sample of blood is tested to measure your hormone levels.

Who's affected-

Both men and women can have an underactive thyroid, although it's more common in women. Children can also develop an underactive thyroid and some babies are born with it. All babies born in the UK are screened for congenital hypothyroidism using a blood spot test when the baby is about 5 days old.

Treating an underactive thyroid

Treatment for an underactive thyroid involves taking daily hormone replacement tablets, called levothyroxine, to raise your thyroxine levels. You'll usually need treatment for the rest of your life. However, with proper treatment, you should be able to lead a normal, healthy life. If an underactive thyroid isn't treated, it can lead to complications, including heart disease, goitre, pregnancy problems and a life-threatening condition called myxoedema coma (although this is very rare).