Editing Thyroid (section)

====Goitre====

{{main|Goitre}}
An enlarged thyroid gland is called a [[goitre]].<ref>{{cite web|title=goitre – definition of goitre in English|url=https://en.oxforddictionaries.com/definition/goitre|archive-url=https://web.archive.org/web/20160918233214/https://en.oxforddictionaries.com/definition/goitre|url-status=dead|archive-date=September 18, 2016|website=Oxford Dictionaries {{!}} English|access-date=18 September 2016}}</ref> Goitres are present in some form in about 5% of people,{{sfn|Davidson's|2010|p=744}} and are the result of a large number of causes, including iodine deficiency, [[autoimmune disease]] (both Graves' disease and Hashimoto's thyroiditis), infection, inflammation, and infiltrative disease such as [[sarcoidosis]] and [[amyloidosis]]. Sometimes no cause can be found, a state called "simple goitre".{{sfn|Davidson's|2010|p=750}}

Some forms of goitre are associated with pain, whereas many do not cause any symptoms. Enlarged goitres may extend beyond the normal position of the thyroid gland to below the sternum, around the airway or esophagus.{{sfn|Davidson's|2010|p=744}} Goitres may be associated with hyperthyroidism or hypothyroidism, relating to the underlying cause of the goitre.{{sfn|Davidson's|2010|p=744}} Thyroid function tests may be done to investigate the cause and effects of the goitre. The underlying cause of the goitre may be treated, however many goitres with no associated symptoms are [[Watchful waiting|simply monitored]].{{sfn|Davidson's|2010|p=744}}