Learn about the TSH test, its purpose, procedure, and how to interpret results. Discover what you need to know for better health management. Read more! Learn about TSH normal ranges by age, high TSH symptoms, causes, testing methods, and when to see a doctor. Includes chart & thyroid health tips. The thyroid-stimulating hormone (TSH) test measures the amount of TSH in the blood to convey how well a person’s thyroid functions. Normal levels are typically 0.4 to 4.0 milliunits per liter... Learn how TSH levels change with age, sex, pregnancy, and thyroid conditions. Find out what normal TSH levels are and how to interpret your test results.
