Tsh

tsh

What is TSH and what does it mean?

What Is TSH? TSH is a hormone that acts as a messenger to the thyroid gland. When released by the pituitary gland—a small gland at the base of the brain—TSH stimulates the thyroid to produce more thyroid hormone. A high TSH suggests your thyroid is underactive ( hypothyroid) and not doing its job of producing enough thyroid hormone.

What is a thyroid stimulating hormone (TSH) test?

The thyroid stimulating hormone (TSH) test measures the amount of TSH in the blood. The results convey how well the thyroid is functioning. Doctors can use TSH test results to diagnose thyroid disorders, such as hypothyroidism and hyperthyroidism. The pituitary gland produces TSH, which is a hormone that stimulates the thyroid gland.

What does it mean when your TSH level is high?

High TSH levels can mean your thyroid is not making enough thyroid hormones, a condition called hypothyroidism. Low TSH levels can mean your thyroid is making too much of the hormones, a condition called hyperthyroidism.

What do low TSH levels mean?

Low TSH levels usually mean that you’re producing too much thyroid hormone. Your pituitary gland responds accordingly by decreasing TSH production to get thyroid function under control.

What is TSH hormone?

TSH is a hormone that acts as a messenger to the thyroid gland. When released by the pituitary gland—a small gland at the base of the brain—TSH stimulates the thyroid to produce more thyroid hormone.

What does a TSH test tell you about your thyroid?

The results convey how well a person’s thyroid is functioning. Doctors can use TSH test results to diagnose thyroid disorders, such as hypothyroidism and hyperthyroidism. The pituitary gland produces TSH, which is a hormone that stimulates the thyroid gland. The thyroid is a butterfly-shaped gland in the throat.

What does it mean when your TSH is elevated?

An elevation in the thyroid-stimulating hormone (TSH) level indicates that the thyroid gland is not functioning properly. The TSH hormone controls the level of T3 and T4 hormones in the body, which in turn carry out various cell functions.

What does a TSH level of 5 mean?

A TSH level higher than 5.0 usually indicates an underactive thyroid (hypothyroidism) and a TSH level lower than 0.4 indicates the presence of excessive thyroid hormone and overactive thyroid ( hyperthyroidism ). Abnormal TSH and thyroid hormone levels commonly indicate the following conditions:

Why is my TSH level so high?

Because your thyroid gland is getting the stimulus from the brain to produce more thyroid hormone (hence the high TSH) but its only capable of producing a normal amount of T4. We know this because we know what a HEALTHY TSH level is supposed to be (3). We also know that a high TSH is not necessary to produce adequate thyroid hormones.

What does it mean when your TSH level is low?

Having low TSH levels means that your thyroid gland is producing thyroid hormones in excess, which is called hyperthyroidism. In this condition, the pituitary gland decreases the amount of TSH it secretes to offset the high amount of thyroid hormones (namely, thyroxine and triiodothyronine) in your body.

What does it mean when TSH is high but T3 is normal?

High TSH but Normal T3 and T4. Just as with high TSH and normal FT4, if your blood test results for both T4 and T3 show normal levels but there is too much TSH in the blood, you could have subclinical hypothyroidism. Doctors will usually monitor your thyroid hormone levels to monitor thyroid function.

How does TSH affect your thyroid?

TSH stimulates your thyroid gland to produce T3 and T4 hormones. Obviously when TSH is high, your thyroid will be stimulated to generate more thyroid hormones. When TSH levels are low, your thyroid will generate less T3 and T4.

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