Normal thyroid-stimulating hormone (TSH) levels generally fall between 0.5 and 5.0 milliunits per liter (mU/L). If your TSH level is higher than 5.0 mU/L it suggests an underactive thyroid, or ...

If you have thyroid disease, your thyroid-stimulating hormone (TSH) levels can fluctuate from time to time. These fluctuations can occur as your thyroid disease progresses or from other factors such ...