High TSH levels can mean you have an underactive thyroid or a pituitary gland tumor. Low TSH levels can mean you have an overactive thyroid or issues with the pituitary gland. TSH levels are first ...
Levels of thyroid hormones in serum are tightly regulated by the hypothalamic-pituitary-thyroid axis (Figure 1). Hypothalamic TSH-releasing hormone (TRH) is secreted mainly from the paraventricular ...
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TSH levels decoded and what they mean
Medically reviewed by Kelly Wood, MD Key Takeaways High TSH levels usually mean the thyroid is underactive, which is called ...
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