Hypothyroidism
20.05.2016 | Heading: Information
Hypothyroidism – disease, due to insufficient secretion of thyroid hormones.
Distinguish between primary, secondary and tertiary hypothyroidism.
Primary hypothyroidism develops when the thyroid gland is damaged and is accompanied by an increase in the level of thyroid-stimulating hormone – TTG.
Secondary hypothyroidism occurs when a special part of the brain is affected – hypothalamic-pituitary system – with insufficient release of thyroid-stimulating hormone and a subsequent decrease in thyroid function.
Tertiary hypothyroidism develops when the hypothalamus is affected.
Prevailing age at onset of hypothyroidism – older 40 years. Prevailing gender – female.
Causes
The causes of the disease depend on its form..
Primary hypothyroidism:
- attack by one's own immune system;
- treatment diffuse toxic goiter;
- iodine deficiency (in regions with a pronounced deficit);
- congenital disorders (most often – underdevelopment of the gland).
Comments (1) (0) »