Anti TPO normal range — check your value

Usually under 34 IU/mL, with the cut-off varying by method.

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Type the test name printed on your report (SGPT, TSH, Vitamin D).

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Your Anti TPO test value

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Anti TPO

IU/mL

What Anti TPO measures

Antibodies the immune system makes against a thyroid enzyme, marking autoimmune thyroid disease.

Anti TPO normal range chart

ResultAnti TPO (IU/mL)

In rangeBelow 5.61

Above range5.61 and above

These bands are for female, 31–45 years. Enter your age and gender above to see the bands for you. The table below shows the range for every age and gender.

Anti TPO normal range by age and gender

AgeMaleFemale

0–1 years0 – 34 IU/mL0 – 34 IU/mL

2–6 years0 – 5.61 IU/mL0 – 5.61 IU/mL

7–11 years0 – 5.61 IU/mL0 – 5.61 IU/mL

12–17 years0 – 5.61 IU/mL0 – 5.61 IU/mL

18–30 years0 – 5.61 IU/mL0 – 5.61 IU/mL

31–45 years0 – 5.61 IU/mL0 – 5.61 IU/mL

46–60 years0 – 5.61 IU/mL0 – 5.61 IU/mL

60 years and above0 – 5.61 IU/mL0 – 5.61 IU/mL

What a high Anti TPO means, and common causes

A positive anti-TPO means the immune system is making antibodies against the thyroid, which is the hallmark of Hashimoto's thyroiditis.

Common causes: Hashimoto's thyroiditis, Graves' disease, and other autoimmune conditions. Some healthy people test positive and never develop thyroid disease.

What a low Anti TPO means, and common causes

A negative or low result makes autoimmune thyroid disease unlikely.

Common causes: Not applicable.

Frequently asked questions

Usually under 34 IU/mL, with the cut-off varying by method.

Not by itself. It predicts a higher chance of developing hypothyroidism over time, so the doctor monitors TSH rather than treating the antibody.

Sharir ki pratirodhak pranali thyroid par asar daal rahi hai. Iska matlab turant dawai nahin, lekin TSH par nazar rakhni hoti hai.

Please note. This page explains what a number means against reference ranges for your age and gender. It does not diagnose anything, cannot see the rest of your report, and is no substitute for a doctor. If your lab’s printed range differs, your lab’s range applies.