Antibodies recognise thyroglobulin
Biomarker library
Thyroid Health
Anti-Tg
Anti-thyroglobulin (anti-Tg) antibodies target thyroglobulin, the protein your thyroid uses to build its hormones.
Measured in your health assessment, with a doctor to explain your result. Book yours
Why it matters
Like anti-TPO, they indicate autoimmune thyroid disease, and the two are often found together; checking both picks up more cases.
What a result can mean
Lower than the range
Negative is the normal result.
Higher than the range
Positive antibodies suggest Hashimoto's thyroiditis or, less often, Graves' disease, and a higher chance of thyroid problems in the future.
What can help
Positive antibodies on their own are monitored rather than treated, and treatment starts only if thyroid hormone levels change.
Read it with
NoteGeneral educational illustration. Colours, sizes and movement are simplified. This is not a scan or a simulation of your body. General information, not personal medical advice: a doctor reads your own results with your history.
Know your Anti-Tg.
Measured in your health assessment and explained by the doctor who reviews your results.