Are you experiencing any that led to this test, or are you also looking for info on TSH levels ?

While a level of 9 is normal, it should be interpreted alongside other thyroid markers:

These are the primary markers for thyroid function. If these are normal, a normal TPO level generally confirms healthy thyroid health.

If you are experiencing symptoms like fatigue, weight changes, or hair loss despite a normal TPO result, your doctor may look for non-autoimmune causes or monitor your levels over time.

Laboratory "normal ranges" can vary slightly. You should always compare your result against the specific reference range provided on your lab report.

The Thyroid Peroxidase antibody test measures the amount of antibodies your immune system produces against an enzyme (TPO) found in the thyroid gland.