A member asked:

Could birth control cause you levels to suggest you have hypothyroidism when actually you do not?

2 doctors weighed in across 2 answers
Dr. Thalia Lopez answered

Specializes in Obstetrics and Gynecology

Birth control : No, a TSH test is specific to your thyroid and does not cross react with your birth control.

Answered 6/10/2014

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No: The estrogen in birth control pills increase the levels of thyroid hormone binding proteins in the blood. This requires your thyroid to make more hormone to fill up the binding sites. If the thyroid is not working well, it will result in lower blood levels of thyroid hormone and a rise in tsh, the test used to determine hypothyroidism. A rise in TSH with birth control pills means hypothyroidism.

Answered 10/4/2016

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Related Questions

A member asked:

Can a side effect to birth control be hypothyroidism?

A doctor has provided 1 answer