Useful Information

Thyroid: thyroid hormones

There are two main hormones: triiodothyronine (T3) and thyroxine (T4).

The secretion of these hormones is regulated by the thyroid stimulating hormone (TSH) produced by the pituitary gland, a gland located at the base of the brain.

A malfunction of the thyroid can have consequences at different levels.

Thyroid dysfunction can affect:

  • the skin,
  • the weight,
  • the digestion
  • mood
  • the heart...

Thyroid hormones can be measured by taking blood.
As for the parathyroid glands, they regulate the level of calcium in the blood.

In the event of a thyroid abnormality, one is usually followed and treated by a specialist: an endocrinologist (with of course his / her doctor).

Thyroid diseases

Thyroid diseases are unfortunately many. Here are the most common conditions:

hyperthyroidism

Hyperthyroidism is hyperactivity of the thyroid gland. It results in excessive hormonal secretion. The main symptoms can be:

  • irritability, hyperactivity, sleep problems, heart problems, brittle hair ...

Hypothyroidism

Hypothyroidism is a decline in thyroid activity. It is rarer and occurs more often in people over 50 years of age. The symptoms observed are:

  • slow heart rate, weight gain, constipation, depressive mood, feeling cold, etc.

Unfortunately, people suffer from these symptoms for several months without a diagnosis of thyroid disease (which requires only a blood test).

Goitre

A goiter is defined as a general increase in the volume of the thyroid gland.

Nodule of the thyroid

The thyroid nodule is characterized by a "ball" in the thyroid. This nodule must be analyzed accurately.

Thyroid cancer

Fortunately, thyroid cancer is fairly rare and usually has a good prognosis.

You want to react, to give your testimony or to ask a question? See you in our FORUMS Hormones and Thyroid or A doctor answers you !

To read also our files:

> Hypothyroidism: symptoms ... at treatment
> Nodule of the thyroid: what to do?
> Graves' disease


Sources and notes:
> Lecomte P. et al, Round Table - Thyroid nodule: updated in 2005.
> FMC CHU Tours, November 2005 Days. National Federation of Cancer Centers - www.fnclcc.fr.

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