what is difference between hypo and hyper thyroid?
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The most common difference between the two diseases relates to hormone levels. Hypothyroidism leads to a decrease in hormones. Hyperthyroidism leads to an increase in hormone production. In the United States, hypothyroidism is more common than hyperthyroidism.
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An underactive thyroid (hypothyroidism) doesn't produce enough hormone. An overactive thyroid (hyperthyroidism) produces too much hormone. Symptoms may include unintentional weight gain or loss, persistent fatigue, palpitations, and sensitivity to hot or cold temperatures.
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Though related to hypothyroid, Hashimoto's is actually a very different condition and requires a very different approach. Hypothyroidism is a problem with your thyroid gland; Hashimoto's is a problem with your immune system.
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In both conditions, the immune system influences the action of the thyroid gland in some way. Graves' is a type of hyperthyroidism; that is, the thyroid is overactive. This is because antibodies stimulate the TSH receptor in thyroid cells. Hashimoto's is a type of hypothyroidism; that is, the thyroid is underactive.
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Thyroid Disorder Complications In severe cases, very low levels of thyroid hormones can trigger a loss of consciousness and life-threatening drop in body temperature. Untreated hyperthyroidism can cause serious heart problems and brittle bones.
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Both hyperthyroidism and hypothyroidism can affect the course of diabetes, but their effects are somewhat different. Hyperthyroidism. Hyperthyroidism is typically associated with worsening blood glucose control and increased insulin requirements.
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Low TSH levels indicate hyperthyroidism. If the thyroid gland is secreting levels of hormones that are too high, the pituitary gland produces less TSH.
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People with hypothyroidism may also have a slower heart rate, or bradycardia. Low thyroid levels can affect the heart in other ways too. These effects may include: changes in blood pressure.
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In most clinical laboratories in the U.S., the “normal” reference range for the TSH is 0.4 to 4.50 mIU/liter. If the TSH is above the “normal” reference range, this may indicate hypothyroidism. In hyperthyroidism, the TSH is below the “normal” range or not detected at all.
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Abnormal thyroid hormone levels, such as hyperthyroidism and hypothyroidism, can be potential causes of anemia (low blood count). All three of these are common medical problems. They also all can produce symptoms of fatigue.
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Blood tests that measure thyroxine and thyroid-stimulating hormone (TSH) can confirm the diagnosis. High levels of thyroxine and low or nonexistent amounts of TSH indicate an overactive thyroid. The amount of TSH is important because it's the hormone that signals your thyroid gland to produce more thyroxine.
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TSH > 4.0/mU/L with a low T4 level indicates hypothyroidism. If your TSH is > 4.0 mU/L and your T4 level is normal, this may prompt your physician to test your serum anti-thyroid peroxidase (anti-TPO) antibodies.
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Low TSH levels indicate hyperthyroidism. This is also known as an overactive thyroid. If the thyroid gland is secreting levels of hormones that are too high, the pituitary gland produces less TSH.
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The test, called a thyroid function test, looks at levels of thyroid-stimulating hormone (TSH) and thyroxine (T4) in the blood. Doctors may refer to this as "free" T4 (FT4). A high level of TSH and a low level of T4 in the blood could mean you have an underactive thyroid.
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Hyperthyroidism is associated with suppressed levels of TSH (typically, <0.5 mU/L). Rarely, an elevated TSH level can be associated with hyperthyroidism if there is a pituitary adenoma secreting TSH. If the TSH is normal (0.5-5 mU/L in most labs), a diagnosis of hyperthyroidism is very unlikely.
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Generally, below-normal levels of TSH indicate hyperthyroidism. However, low TSH levels may also occur in a normal pregnancy, especially in the first trimes- ter, due to the small increase in thyroid hormones from HCG.
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The main difference between thyroid and parathyroid is that thyroid produces hormones that regulate the metabolism of the body whereas parathyroid produces hormones that control the calcium ion levels in the blood.