A member asked:

Could the diagnosis of a.n.a positive be the reason for my hypothyroidism ?

A doctor has provided 1 answer
Dr. Joseph Mathews answered

Specializes in Internal Medicine - Endocrinology

ANA: Is not specific for any type of autoimmune disease like hashimoto's thyroiditis (the most common cause of hypothyroidism). 3-15% of normal healthy individuals have a positive ana. It is sensitive though, meaning that if you have an autoimmune disease (like ra) then most have a positive ana. Autoimmune diseases also tend to occur together. A positive anti-TPO antibody is specific for hashimoto's.

Answered 2/18/2015

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