Thyroid health

Thyroid-stimulating hormone (TSH)

Measures the pituitary signal that regulates thyroid hormone production.

Understanding the result

TSH is interpreted with symptoms and, when appropriate, free thyroid hormone measurements.

Reading your report

Use the units, method and reference interval on your laboratory report. Your clinician can interpret the result alongside your history and other findings.

Sources & further reading

Educational summary · September 2026