wht are the causes of goitre
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Answer:
causes of goiter
Iodine deficiency is the main cause of goiters. Iodine is essential to helping your thyroid produce thyroid hormones. When you don’t have enough iodine, the thyroid works extra hard to make thyroid hormone, causing the gland to grow larger.
Other causes include the following:
Graves’ disease
Graves’ disease occurs when your thyroid produces more thyroid hormone than normal, which is known as hyperthyroidism. The excessive production of hormones makes the thyroid increase in size.
Hashimoto’s thyroiditis
When you have Hashimoto’s thyroiditis, also known as Hashimoto’s disease, it predisposes thyroid to not being able to produce enough thyroid hormone, causing hypothyroidism.
The low thyroid hormone causes the pituitary gland to make more thyroid-stimulating hormone (TSH), which causes the thyroid to enlarge.
Inflammation
Some people develop thyroiditis, an inflammation of the thyroid that can cause a goiter. This is different than Hashimoto’s thyroiditis. One example is viral thyroiditis.
Nodules
Solid or fluid-containing cysts may appear on the thyroid and cause it to swell. These nodules are often noncancerous.
Thyroid cancer
Cancer may affect the thyroid, which causes swelling on one side of the gland. Thyroid cancer isn’t as common as the formation of benign nodules.
Pregnancy
Being pregnant can sometimes cause the thyroid to become larger....
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