2 doctors weighed in:

Can breastfeeding cause my TSH level to go up? Before children my TSH was 5.11. After my second child my TSH is now 5.69.

2 doctors weighed in
Dr. Wayne Ingram
Obstetrics & Gynecology
1 doctor agrees

In brief: Pregnancy can

Pregnancy can cause changes in the thyroid binding globulin which can change TSH values during that time.
Breastfeeding will increase prolactin and "may" have altered your tsh. I would have it checked again in 6 months or after breastfeeding is done.

In brief: Pregnancy can

Pregnancy can cause changes in the thyroid binding globulin which can change TSH values during that time.
Breastfeeding will increase prolactin and "may" have altered your tsh. I would have it checked again in 6 months or after breastfeeding is done.
Dr. Wayne Ingram
Dr. Wayne Ingram
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