2 doctors weighed in:

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

2 doctors weighed in
Dr. Stephanie Lee
Internal Medicine - Endocrinology

In brief: 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.

In brief: 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.
Dr. Stephanie Lee
Dr. Stephanie Lee
Thank
Dr. Thalia Lopez
Obstetrics & Gynecology

In brief: Birth control

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

In brief: Birth control

No, a TSH test is specific to your thyroid and does not cross react with your birth control.
Dr. Thalia Lopez
Dr. Thalia Lopez
Thank
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