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Hypothyroidism is more common in women than in men. [3] People over the age of 60 are more commonly affected. [3] Dogs are also known to develop hypothyroidism, as are cats and horses, albeit more rarely. [13] The word hypothyroidism is from Greek hypo-'reduced', thyreos 'shield', and eidos 'form', where the two latter parts refer to the ...
Thyroid diseases are highly prevalent worldwide, [10] [11] [12] and treatment varies based on the disorder. Levothyroxine is the mainstay of treatment for people with hypothyroidism, [13] while people with hyperthyroidism caused by Graves' disease can be managed with iodine therapy, antithyroid medication, or surgical removal of the thyroid ...
Changes in the definition of hypothyroidism and treatment options modify the incidence and prevalence of the disease overall. Treatment using levothyroxine is individualized , and therefore allows the disease to be more manageable with time but does not work as a cure for the disease.
It typically present as a painless, hard anterior neck mass, which progresses over weeks to years to produce symptoms of compression, including dysphagia, dyspnea choking and hoarseness. Patients may present with symptoms of hypothyroidism and hypoparathyroidism as the gland is replaced by Fibrous tissues .
Iodine deficiency causes gradual enlargement of the thyroid gland, referred to as a goiter. Poor length growth is apparent as early as the first year of life. Adult stature without treatment ranges from 100 to 160 cm (3 ft 3 in to 5 ft 3 in), depending on severity, sex, and other genetic factors.
Treatment involves symptomatic medication, glucocorticoid medication for severe cases, and beta-adrenergic blockers for thyrotoxic symptoms. The condition typically resolves within three to six months. However, 20-56% of adult patients experience transient hypothyroidism, which can persist for years.
In all three types of thyroiditis, there is inflammation of the thyroid gland which leads to clinical symptoms in three phases. The initial thyrotoxic phase is followed by hypothyroid phase before reaching a euthyroid phase where normal thyroid function in restored.
There may be symptoms of thyroid overactivity, such as weight loss, a fast or irregular heart rate, tremor, and perspiration; [1] [2] but such symptoms occur in only half of all cases. [5] The most common type of hyperthyroidism, Graves' disease , may additionally cause eye problems ( Graves' ophthalmopathy ) and skin changes of the legs ...