Is there a thyroid test?
The best way to check in with your thyroid is with a TSH blood test. The test looks into how much thyroid-stimulating hormone (TSH) your body is producing and gives you insight into thyroid health.
Why is TSH so important? When the thyroid is overactive or underactive, the pituitary gland sends a helpful message (via TSH) to release the right amount of thyroid hormone into the bloodstream.
Higher TSH levels indicate an underactive thyroid, and lower TSH levels indicate an overactive thyroid.