Anti Thyroid Peroxidase (Anti TPO) Anti body
An Anti-TPO Antibody (Anti-Thyroid Peroxidase Antibody) test helps detect the presence of antibodies against the enzyme thyroid peroxidase that is involved in producing thyroid hormones.
Sample Required
🩸 Blood
This test is for
👤 Male, Female
Earliest reports in
⏱ 24 hours
Contains
🧪 1 tests
- TSH (Thyroid Stimulating Hormone)
- Free T3 (FT3)
- Free T4 (FT4)
- Total T3
- Total T4
- Anti-Thyroglobulin Antibody (Anti-TG)
- Thyroid Profile / Thyroid Panel
- Thyroid Ultrasound (if needed)
Method Name
🧬 CLIA, ECLIA / ELISA
Preparations Required
- ✓ No special preparation is required.
Know more about this test
An Anti-TPO Antibody (Anti-Thyroid Peroxidase Antibody) test detects antibodies made by the immune system that mistakenly attack thyroid peroxidase (TPO)—an ... An Anti-TPO Antibody (Anti-Thyroid Peroxidase Antibody) test detects antibodies made by the immune system that mistakenly attack thyroid peroxidase (TPO)—an enzyme essential for the production of thyroid hormones (T3 & T4). High levels of anti-TPO antibodies indicate autoimmune thyroid diseases such as Hashimoto’s thyroiditis (causing hypothyroidism) and Graves’ disease (causing hyperthyroidism). This test helps identify the root cause of thyroid imbalance, predict future thyroid disease risk, and monitor treatment response. It is often included in a Thyroid Comprehensive Panel along with TSH, FT3, FT4, and anti-TG antibodies. see more
Understanding Anti Thyroid Peroxidase
What is Anti-TPO Antibody (Anti-Thyroid Peroxidase Antibody)?
An Anti-TPO Antibody (Anti-Thyroid Peroxidase Antibody) test helps detect the presence of antibodies against the enzyme thyroid peroxidase that is ... An Anti-TPO Antibody (Anti-Thyroid Peroxidase Antibody) test helps detect the presence of antibodies against the enzyme thyroid peroxidase that is involved in producing thyroid hormones. This test helps diagnose and monitor autoimmune thyroid disorders, particularly Hashimoto's thyroiditis and Graves' disease. It may be done routinely or as part of a Thyroid Comprehensive Package, which also includes other thyroid function tests, to provide a holistic view of thyroid health. The thyroid gland is a small, butterfly-shaped organ in the neck region. This gland secretes an enzyme called thyroid peroxidase (TPO) that plays a vital role in producing other thyroid hormones. These thyroid hormones regulate metabolism, body temperature, and growth and development. In the case of autoimmune thyroid disorders, such as Hashimoto's thyroiditis and Graves' disease, the body's immune system may produce antibodies against TPO, thus leading to inflammation and mistakenly damage to the normal tissue of thyroid gland. An Anti-TPO Antibody (Anti-Thyroid Peroxidase Antibody) test specifically detects these antibodies in the blood and provides insights into the underlying causes of thyroid dysfunction. Early detection of these antibodies can help predict the development of thyroid dysfunction and allow for timely intervention and management. In Hashimoto's thyroiditis, a common cause of hypothyroidism (underactive thyroid), the immune system mistakenly recognizes TPO as a foreign invader, leading to chronic inflammation and damage to the thyroid tissue. Some symptoms suggestive of hypothyroidism include weight gain, fatigue, sensitivity to cold, constipation, and dry skin. In Graves' disease, a common cause of hyperthyroidism (overactive thyroid), the immune system produces antibodies that stimulate the thyroid gland to produce excess thyroid hormone. Some symptoms suggestive of hyperthyroidism include weight loss, nervousness, irritability, increased sweating, and rapid heartbeat. No special preparations are needed for this test. Usually, you do not need to stop taking your thyroid medication before taking this test to maintain the test's accuracy. However, be sure to notify your doctor about any medications, herbs, and supplements (including over-the-counter medicines) that you are taking. A positive result indicates the presence of anti-TPO antibodies in the blood, while a negative result implies the absence of detectable anti-TPO antibodies. However, further testing may be necessary as some individuals with autoimmune thyroid disorders may not have a detectable amount of anti-TPO antibodies. Discuss your test results with the doctor. The test results will help them determine your medical condition, make recommendations for lifestyle modifications such as diet, exercise, and medication to manage your condition, and design your overall treatment plan. read more
What is Anti-TPO Antibody (Anti-Thyroid Peroxidase Antibody) used for?
An Anti-TPO Antibody (Anti-Thyroid Peroxidase Antibody) test is done: To assess your overall thyroid health and determine the underlying causes ... An Anti-TPO Antibody (Anti-Thyroid Peroxidase Antibody) test is done: To assess your overall thyroid health and determine the underlying causes of thyroid dysfunction. To diagnose autoimmune disorders of the thyroid like Hashimoto's thyroiditis (swelling of the thyroid gland resulting in decreased thyroid function), Grave's disease (overactive thyroid gland resulting in overproduction of thyroid hormones), or idiopathic myxedema (associated with low levels of thyroid hormones). To differentiate autoimmune disorders of the thyroid from other causes of thyroid dysfunction, such as goiter. To monitor the progression and treatment effectiveness of autoimmune thyroid disorders. To assess the future risk of thyroid disorders. read more
- Anti-TPO Antibody Level
- Reference Range
- Units (IU/mL)
- Interpretation (Positive/Negative)
- Clinical Comments (if provided by lab)
What Each Test Measures

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STEP 4
Lab Testing
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STEP 5
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Frequently Asked Questions
An Anti-TPO Antibody (Anti-Thyroid Peroxidase Antibody) test is a diagnostic tool that measures antibodies against thyroid peroxidase, thus helping to identify autoimmune thyroid disorders.
You may need an Anti-TPO Antibody (Anti-Thyroid Peroxidase Antibody) test if you have symptoms of hypothyroidism (weight gain, fatigue, cold intolerance, constipation, dry skin) or hyperthyroidism (weight loss, irritability, sweating, rapid heartbeat). It helps determine if your thyroid issue is autoimmune.
A positive anti-TPO result indicates the presence of antibodies attacking the thyroid enzyme TPO, suggesting autoimmune thyroid disease.
Yes, high anti-TPO levels can act as an early predictor of future thyroid dysfunction.
No, along with anti-TPO, tests like anti-thyroglobulin antibodies may also be required for a complete autoimmune thyroid evaluation.
TPO antibodies during pregnancy may increase the risk of miscarriage, preterm delivery, hypertension, or postpartum thyroid problems, even with normal thyroid levels.
An autoimmune disorder occurs when the immune system mistakenly attacks the body’s own healthy tissues.
Risk factors include family history, obesity, smoking, blood pressure medications, cholesterol-lowering drugs, and certain antibiotics.
If anti-TPO levels are abnormal, your doctor may advise tests like thyroid-binding globulin (TBG) and a complete thyroid profile tests.
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What are CureBay Health Packages?
CureBay Health Packages are a combination of essential diagnostic tests and preventive checkups, designed to monitor overall health and detect potential issues early.
How can I book a package?
You can easily book through CureBay’s website, mobile app, or helpline. Once booked, you’ll receive confirmation and a phlebotomist will be scheduled for home sample collection.
Can I book tests for my family members?
That depends on the supplement and your personal health goals. The results are visible depending on your consistency. Remember to be consistent to feel a noticeable difference.
How will I get my reports?
Reports are delivered digitally within the mentioned TAT (Turnaround Time) via Email, WhatsApp, and CureBay’s platform.
Are doctor consultations included in the packages?
Many packages include complimentary doctor consultations to help you understand your test results and guide next steps for better care.
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Anti Thyroid Peroxidase (Anti TPO) Anti body
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