Underactive thyroid (hypothyroidism) & Risk factors

Hypothyroidism occurs when the thyroid gland does not produce enough thyroid hormones. This tends to slow down the body’s functions. Symptoms include tiredness, constipation and sensitivity to the cold.

Risk factors for hypothyroidism

Hypothyroidism is more common in older people.
Women are more likely to be affected than men.
Autoimmune hypothyroidism is more likely in those who have other conditions resulting from an autoimmune disorder such as type 1 diabetes mellitus, vitiligo and Addison’s disease.
Some medicines can affect the normal functioning of the thyroid gland. These include lithium carbonate (for bipolar disorder) and amiodarone (for heart rhythm abnormalities).


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