Disease or Syndrome
hyperthyroidism
hy·per·thy·roid·ism [ hahy-per-thahy-roi-diz-uhm ]
Subclass of:
Thyroid Diseases
Etymology:
Greek hyper = excess + thyreos = a shield + eidos = resemblance + -ism = condition
Also called:
Thyrotoxicosis
Definitions related to hyperthyroidism:
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A condition in which the thyroid gland makes too much thyroid hormone.Harvard Dictionary of Health TermsHarvard Medical Publishing, 2011
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An abnormality of thyroid physiology characterized by excessive secretion of the thyroid hormones thyroxine (i.e., T4) and/or 3,3',5-triiodo-L-thyronine zwitterion (i.e., triiodothyronine or T3).Human Phenotype Ontology (HPO)The Human Phenotype Ontology Project, 2021
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Excessive functional activity of the thyroid gland.CRISP ThesaurusNational Institutes of Health, 2006
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Hypersecretion of THYROID HORMONES from the THYROID GLAND. Elevated levels of thyroid hormones increase BASAL METABOLIC RATE.NLM Medical Subject HeadingsU.S. National Library of Medicine, 2021
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Increased secretion of thyroid hormone(s) by the thyroid gland.NICHD Pediatric TerminologyU.S. National Cancer Institute, 2021
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Overactivity of the thyroid gland resulting in overproduction of thyroid hormone and increased metabolic rate. Causes include diffuse hyperplasia of the thyroid gland (Graves' disease), single nodule in the thyroid gland, and thyroiditis. The symptoms are related to the increased metabolic rate and include weight loss, fatigue, heat intolerance, excessive sweating, diarrhea, tachycardia, insomnia, muscle weakness, and tremor.NCI ThesaurusU.S. National Cancer Institute, 2021
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Too much thyroid hormone. Symptoms include weight loss, chest pain, cramps, diarrhea, and nervousness.NCI Dictionary of Cancer TermsU.S. National Cancer Institute, 2021
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Hyperthyroidism, or overactive thyroid, happens when your thyroid gland makes more thyroid hormones than your body needs. Your thyroid is a small, butterfly-shaped gland in the front of your neck. It makes hormones that control the way the body uses energy. These hormones affect nearly every organ in your body and control many of your body's most important functions. For example, they affect your breathing, heart rate, weight, digestion, and moods. If not treated, hyperthyroidism can cause serious problems with your heart, bones, muscles, menstrual cycle, and fertility. But there are treatments that can help. Hyperthyroidism has several causes. They include Grave's disease, an autoimmune disorder in which your immune system attacks your thyroid and causes it to make too much hormone. This is the most common cause.; Thyroid nodules, which are growths on your thyroid. They are usually benign (not cancer). But they may become overactive and make too much thyroid hormone. Thyroid nodules are more common in older adults.; Thyroiditis, inflammation of the thyroid. It causes stored thyroid hormone to leak out of your thyroid gland.; Too much iodine. Iodine is found in some medicines, cough syrups, seaweed and seaweed-based supplements. Taking too much of them can cause your thyroid to make too much thyroid hormone.; Too...MedlinePlusU.S. National Library of Medicine, 2021
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A disorder characterized by excessive levels of thyroid hormone in the body. Common causes include an overactive thyroid gland or thyroid hormone overdose.Common Terminology Criteria for Adverse EventsU.S. National Institutes of Health, 2021
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Hyperthyroidism is characterized by hypermetabolism and elevated serum levels of free thyroid hormones. Symptoms are many and include tachycardia, fatigue, weight loss, nervousness, and tremor. Diagnosis is clinical and with thyroid function tests. Treatment depends on cause.Merck & Co., Inc., 2020
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Hyperthyroidism is a set of disorders that involve excess synthesis and secretion of thyroid hormones by the thyroid gland, which leads to the hypermetabolic condition of thyrotoxicosis. The most common forms of hyperthyroidism include diffuse toxic goiter (Graves disease), toxic multinodular goiter (Plummer disease), and toxic adenoma.WebMD, 2019
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Hyperthyroidism (overactive thyroid) occurs when your thyroid gland produces too much of the hormone thyroxine. Hyperthyroidism can accelerate your body's metabolism, causing unintentional weight loss and a rapid or irregular heartbeat.Mayo Foundation for Medical Education and Research
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Hyperthyroidism, excess production of thyroid hormone by the thyroid gland. Most patients with hyperthyroidism have an enlarged thyroid gland (goitre), but the characteristics of the enlargement vary. Examples of thyroid disorders that give rise to hyperthyroidism include diffuse goitre (Graves...Encyclopedia Britannica, Inc., 2020
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