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Also reported in: mcg/L
Thyroglobulin is a protein produced by thyroid cells. In people with an intact thyroid, normal levels indicate normal thyroid tissue activity. In thyroid cancer surveillance, any detectable thyroglobulin after thyroidectomy warrants attention.
For patients who have had thyroid cancer and thyroidectomy, undetectable thyroglobulin is the goal — it indicates no residual or recurrent thyroid tissue. For people who still have a thyroid, undetectable thyroglobulin can occasionally reflect antibody interference with the test.
If you have had thyroid cancer treatment, this is an excellent result. Discuss with your oncologist to confirm this ongoing remission.
Thyroglobulin: {{value}} {{unit}} — undetectableLow thyroglobulin is expected in people who have had their thyroid removed (thyroidectomy). In people with an intact thyroid, very low levels may reflect suppression from levothyroxine therapy.
Interpretation depends entirely on clinical context. Discuss with your doctor.
Thyroglobulin: {{value}} {{unit}} — below reference range (ref: {{low}}–{{high}})Low-normal thyroglobulin is common in people on levothyroxine therapy, as TSH (the signal hormone your brain sends to your thyroid) suppression reduces thyroglobulin production.
No action needed in this context. Discuss with your doctor for cancer surveillance interpretation.
Thyroglobulin: {{value}} {{unit}} — borderline lowThyroglobulin is a protein produced by thyroid cells. In people with an intact thyroid, normal levels indicate normal thyroid tissue activity. In thyroid cancer surveillance, any detectable thyroglobulin after thyroidectomy warrants attention.
Interpretation is context-dependent. In a person with a normal thyroid and no cancer history, this is a reassuring result.
Thyroglobulin: {{value}} {{unit}} — within reference rangeYour thyroglobulin level is in the healthy range for someone with an intact thyroid, reflecting normal thyroid cell activity.
No action needed. Continue regular thyroid monitoring.
Thyroglobulin: {{value}} {{unit}} — optimalBorderline high thyroglobulin can reflect normal thyroid stimulation, goiter, or thyroid nodules in people with an intact gland. In cancer survivors after thyroidectomy, any elevation is a signal to investigate recurrence.
If you have had thyroid cancer treatment, discuss with your oncologist immediately. If you have an intact thyroid, an ultrasound to check for nodules or goiter may be appropriate.
Thyroglobulin: {{value}} {{unit}} — borderline highElevated thyroglobulin in someone with an intact thyroid may reflect a large goiter, nodule, or thyroid inflammation. In thyroid cancer survivors after thyroidectomy, elevated thyroglobulin is the primary marker for cancer recurrence and must be taken seriously.
See your doctor. In cancer survivors, this requires urgent evaluation for recurrence. In people with intact thyroid, neck ultrasound and thyroid function testing are needed.
Thyroglobulin: {{value}} {{unit}} — above reference range (ref: {{low}}–{{high}})A very high thyroglobulin after thyroidectomy strongly suggests thyroid cancer recurrence. In a person with an intact thyroid, this level indicates very active thyroid tissue — possibly a large goiter or malignancy.
See your doctor urgently. Comprehensive neck imaging, nuclear medicine scanning, and specialist review are needed without delay.
Thyroglobulin: {{value}} {{unit}} — very high (ref: {{low}}–{{high}})Upload your lab report and get your actual values interpreted in plain English — instantly, with no medical training required.