The thyroid peroxidase test measures the level of an antibody that is directed against thyroid peroxidase (TPO). A presence of TPOAb in the blood reflects a prior attack by the body's immune system on thyroid tissue. A positive thyroid peroxidase test may signal chronic thyroiditis. Other autoimmune disorders, however, may have a positive TPOAb test. Read more: Thyroid Peroxidase Test Article
Multimedia: Slideshows, Images & Quizzes
Hyperthyroidism Symptoms and Treatment
What is hyperthyroidism? Hyperthyroidism occurs when an overactive thyroid gland produces an excessive amount of thyroid...
Thyroid Problems Explained
Learn about thyroid problems such as hyperthyroidism, hypothyroidism, thyroid cancer, and more. Discover symptoms and treatments...
Picture of Thyroid
The thyroid is a butterfly-shaped gland located in the front of the neck just below the Adams apple. See a picture of the Thyroid...
Related Disease Conditions
Hyperthyroidism (Symptoms, Causes, Treatment Medication, Diet)
Hyperthyroidism is an excess of thyroid hormone due to an overactive thyroid gland. Symptoms can include increased heart rate,...
There are several types of thyroid disorders including hypothyroidism, hyperthyroidism, goiters, thyroid nodules, and thyroid...
Rheumatoid arthritis (RA) is an autoimmune disease that causes chronic inflammation of the joints, the tissue around the joints,...
Pernicious anemia is a blood disorder in which the body does not make enough red blood cells due to a lack of vitamin B12 in the...
Thyroid Disorders Symptoms and Signs
Thyroid diseases and disorders are caused because the body either makes too much or too little thyroid hormones, which are...
Thyroid nodules are the most common endocrine problem in the United States. The term "thyroid nodule" refers to any abnormal...
Sjögren's syndrome is an autoimmune disease involving the abnormal production of extra antibodies that attack the glands and...
Hypothyroidism (Symptoms, Diet, Natural and Medical Treatments, Tests)
Hypothyroidism is any state in which thyroid hormone production is below normal. Normally, the rate of thyroid hormone...
Hashimoto's Thyroiditis (Symptoms, Diet, Treatments, Pregnancy)
Hashimoto's thyroiditis or chronic lymphocytic thyroiditis, is an autoimmune disorder causing inflammation of the thyroid gland....
Lupus (Systemic Lupus Erythematosus or SLE)
Systemic lupus erythematosus is a condition characterized by chronic inflammation of body tissues caused by autoimmune disease....
Hypothyroidism during Pregnancy
Hypothyroidism during pregnancy can be treated with synthetic thyroid hormones to maintain the proper thyroid hormone balance....
There are four major types of thyroid cancer: papillary, follicular, medullary, and anaplastic thyroid cancer. Tumors on the...
Treatment & Diagnosis
Medications & Supplements
Subscribe to MedicineNet's General Health Newsletter