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
- the heart...
Thyroid hormones can be measured by taking blood.
As for the parathyroid glands, they regulate the level of calcium in the blood.
Thyroid diseases are unfortunately many. Here are the most common conditions:
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 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).
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.
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.