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Thyroid stimulating hormone supports metabolism: What if it’s too high or low?

Medically reviewed by Kelly Wood, MD Key Takeaways 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 ...
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Abnormal TSH levels common for adults with hypothyroidism receiving levothyroxine therapy

Please provide your email address to receive an email when new articles are posted on . Of adults receiving levothyroxine therapy for hypothyroidism, 43.8% had either low or high TSH levels. TSH ...