TSH Receptor Antibody (TRAb)
Here’s what it reflects — and what to do about it.
Longetic pulls together every lab and record you’ve had, follows how TSH Receptor Antibody (TRAb) changes over time, and explains what’s shifting — so you walk into your next appointment prepared, with reminders for retests along the way.
What is TSH Receptor Antibody (TRAb)?
An antibody that can act on the thyroid TSH receptor and is linked with autoimmune thyroid disease.
TRAb are antibodies the immune system can make against the receptor that normally responds to thyroid-stimulating hormone. Detectable or higher levels can be associated with Graves disease, an autoimmune cause of an overactive thyroid, and the test can also help assess thyroid eye disease or guide care during pregnancy. It is a targeted test used when autoimmune thyroid disease is suspected, and it is a different test from thyroid-stimulating immunoglobulin even though the two overlap.
What to know about TSH Receptor Antibody (TRAb)
Understanding TSH Receptor Antibody (TRAb) means knowing what it reflects, what tends to move it, and the signs that suggest it’s worth a closer look — so you can bring the right questions to your next appointment.
This glossary entry is for informational purposes only and is not a substitute for professional medical advice. Read our Medical Disclaimer.
References
About our sources
Official sources
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Peer-reviewed research
Original research articles and systematic reviews published in indexed journals and verified through PubMed or DOI.