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Causes could include:
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No known cause
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Iodine deficiency syndrome
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There are different kinds of goiters. A simple goiter can occur for no known reason, or when the thyroid gland is not able to produce enough thyroid hormone to meet the body's needs. The thyroid gland makes up for this by becoming larger. There ar...
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Excess TSH (or similar hormones), cysts, and tumors will enlarge the thyroid gland. Of these, TSH enlarges the entire gland while cysts and tumors enlarge only a part of it. The only symptom from a goiter is the large swelling just above the breas...
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Hypothyroidism is a condition in which the thyroid gland does not make enough thyroid hormone. See also: Chronic thryoiditis (Hashimoto's disease; Subacute thyroiditis; Silent thyroiditis; Neonatal hypothyroidism.
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Hypothyroidism, or a condition of insufficient thyroid hormone in the body, develops when the thyroid gland fails to produce or secrete as much thyroxine (T 4 ) and triiodothyronine (T 3 ) as the body needs. Because T 4 regulates such essential functions as heart rate, digestion, physical growth, and mental development, an insufficiency of this hormone can slow life-sustaining processes, damage organs and tissues in every part of the body, and lead to life-threatening complications.
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Detailed information on hypothyroidism, including causes, symptoms, diagnosis, and treatment
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This small gland can cause a multitude of problems affecting every system in your body. Here's how to tell if your thyroid gland is producing too much or too little hormone and what to do about it.
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Hypothyroidism is the condition that reflects decreased concentrations of thyroid hormones, due to any cause. The resulting hypometabolic state causes decreased heat production and generally slows many of the bodies' processes. Its prevalence is 1 to 3 percent of young to middle-aged adults, mainly women, and its incidence rises with age. Severe hypothyroidism occurs in 2 to 4 percent of women older than seventy years of age, and milder forms of disease in 8 to 15 percent. Outside of North America, iodine deficiency is a major cause of hypothyroidism. In the United States, causes include Hashimoto's disease and treatment of hyperthyroidism—either by surgery or radioactive iodine (I-131). Treatment for hypothyroidism consists of hormone supplementation, generally synthetic l-thyroxine, taken once per day. M ARTIN I. S URKS ( SEE ALSO : Goiter ; Hyperthyroidism ; Iodine ; Thyroid Disorders ; Thyroid Function Tests )
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When you have hypothyroidism, your thyroid gland doesn’t produce enough hormone. With hyperthyroidism, the thyroid gland produces too much hormone. A goiter is the enlargement of the thyroid gland.
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Chances are you know the difference between occasional sadness and depression. But here's a fact you may not know: Hypothyroidism, a common thyroid disorder, can cause depression.
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Detailed information on hypothyroidism, including causes, symptoms, diagnosis, treatment, and congenital hypothyroidism
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Detailed information on hypothyroidism and pregnancy, including symptoms and treatment and thyroid function screening
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Detailed information on hypothyroidism, including causes, symptoms, diagnosis, and treatment
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Researchers are exploring a potential link between thyroid deficiency and mental health problems. Though the findings are inconsistent, there is evidence that thyroid medication can help those with depression, even if their thyroid function is normal.
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Low thyroid hormone production, or hypothyroidism, can bring on a range of symptoms that may easily be confused with aging. A guide to hypothyroidism and how to treat it.
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Hypothyroidism, or underactive thyroid, develops when the thyroid gland fails to produce or secrete as much thyroxine (T 4 ) as the body needs. Because T 4 regulates such essential functions as heart rate, digestion, physical growth, and mental development, an insufficient supply of this hormone can slow life-sustaining processes, damage organs and tissues in every part of the body, and lead to life-threatening complications.
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Hypothyroidism, or underactive thyroid, develops when the thyroid gland fails to produce or secrete as much thyroxine (T 4 ) and triiodothyonine (T 3 ) as the body needs. Because these thyroid hormones regulate such essential functions as heart rate, digestion, physical growth, and mental development, an insufficient supply of this hormone can slow metabolic processes, damage organs and tissues in every part of the body, and lead to life-threatening complications.
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Can hypothyroidism cause heavy and long periods? Will Levoxyl (L-thyroxine) help?
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My 21 year old daughter is planning to have a baby. She has congenital hypothyroidism, and was placed on medications when she was 10 days old. How will her condition affect a developing fetus?
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Is there any relationship between hypothyroidism and infertility?
Mary Pickett, M.D., is a lecturer for Harvard Medical School and an assistant professor of medicine at Oregon Health & Science University in Portland, OR. At OHSU, she practices general internal medicine and teaches medical residents and students.
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Graves disease is an autoimmune disorder that leads to overactivity of the thyroid gland (hyperthyroidism.
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Are people with Graves' disease more prone to developing other autoimmune problems?
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Chronic thyroiditis is swelling (inflammation) of the thyroid gland that often results in reduced thyroid function (hypothyroidism.
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Detailed information on Hashimoto's thyroiditis, including symptoms, diagnosis, and treatment
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