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Thyroid

An underactive thyroid gland (hypothyroidism) is where your thyroid gland does not produce enough hormones. Common signs of an underactive thyroid are tiredness, weight gain and feeling depressed.

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Underactive thyroid (hypothyroidism)

An underactive thyroid gland (hypothyroidism) is where your thyroid gland does not 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 is not 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.

Overactive Thyroid

An overactive thyroid, also known as hyperthyroidism or thyrotoxicosis, is where the thyroid gland produces too much of the thyroid hormones.

The thyroid is a small butterfly-shaped gland in the neck, just in front of the windpipe (trachea). It produces hormones that affect things such as your heart rate and body temperature.

Having too much of these hormones can cause unpleasant and potentially serious problems that may need treatment.

An overactive thyroid can affect anyone, but it’s about 10 times more common in women than men, and typically happens between 20 and 40 years of age.

There are thoughts around the link between overactive thyroid and Covid19 in Long Covid patients

Symptoms of an overactive thyroid

  • nervousness, anxiety and irritability
  • mood swings
  • difficulty sleeping
  • persistent tiredness and weakness
  • sensitivity to heat

  • swelling in your neck from an enlarged thyroid gland (goitre)
  • an irregular and/or unusually fast heart rate (palpitations)
  • twitching or trembling
  • weight loss

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