Tests & investigations
Thyroid peroxidase antibodies indicate autoimmune thyroid disease, which raises the chance of the thyroid becoming underactive, particularly in pregnancy. Their presence with a normal TSH does not automatically require treatment, but it does justify monitoring.
Also known as: TPO antibodies, anti-TPO
Related Canada guides
Sources
- Society of Obstetricians and Gynaecologists of Canada (SOGC) patient information
Last reviewed: September 9, 2026. Written by the Antega Editorial Team. General information only — always follow the advice of your own clinic, doctor or pharmacist.