What is Thyroid Stimulating Hormone (TSH)?
Thyroid Stimulating Hormone is measured as part of a thyroid panel. Your TSH is in the normal range — your thyroid appears to be functioning normally.
What does a high Thyroid Stimulating Hormone mean?
Your TSH is elevated, suggesting your thyroid may be underactive (hypothyroidism). This is one of the most common hormonal conditions. Symptoms include fatigue, weight gain, feeling cold, and dry skin.
If markedly elevated: Your TSH is very high, indicating significant hypothyroidism. This requires medical treatment.
What does a low Thyroid Stimulating Hormone mean?
Your TSH is below normal, suggesting your thyroid may be overactive (hyperthyroidism). Symptoms can include weight loss, rapid heartbeat, anxiety, and heat intolerance.
If markedly low: Your TSH is critically low, strongly suggesting severe hyperthyroidism. Your thyroid may be overactive. Please see a doctor.
Understand your whole report, not just one number
A single value rarely tells the full story — Thyroid Stimulating Hormone is best read alongside the rest of your panel. Paste your values or upload your report and get a plain-English explanation of every marker, with the important results flagged.