Underactive Thyroid Gland

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An underactive thyroid gland (hypothyroidism) is where your thyroid gland doesn’t produce enough hormones. Common signs of an underactive thyroid are tiredness, weight gain and feeling depressed. An underactive thyroid can often be successfully treated by taking daily hormone tablets to replace the hormones your thyroid isn’t making. There’s no way of preventing an underactive thyroid. Most cases are caused either by the immune system attacking the thyroid gland and damaging it, or by damage to the thyroid that occurs during some treatments for an overactive thyroid or thyroid cancer.

The thyroid gland is located in the front lower part of your neck. Hormones released by the gland travel through your bloodstream and affect nearly every part of your body, from your heart and brain, to your muscles and skin.

Who’s Affected?

Both men and women can have an underactive thyroid, although it’s more common in women. In the UK, it affects 15 in every 1,000 women and 1 in 1,000 men. Children can also develop an underactive thyroid.

Around 1 in 3,500-4,000 babies are born with an underactive thyroid (congenital hypothyroidism). All babies born in the UK are screened for congenital hypothyroidism using a blood spot test when the baby is about five 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).

 

 

 

 


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