Understanding Your Thyroid Report

TSH, T3 and T4 explained in plain language, and when an out-of-range number needs a doctor’s attention.

A thyroid profile measures three things: TSH, which your brain uses to signal the thyroid, and T3 and T4, the hormones the thyroid makes.

High TSH

A high TSH usually means the thyroid is underactive (hypothyroidism). Tiredness, weight gain and feeling cold are common signs.

Low TSH

A low TSH can point to an overactive thyroid (hyperthyroidism), often with weight loss, a fast heartbeat or anxiety.

Next steps

One slightly abnormal result is not a diagnosis. Your doctor may repeat the test or add antibody tests. Novus offers a free report consultation to walk you through your numbers.