6 doctors weighed in:

If I took levothyroxine pills in pregnancy will my child have learning disabilities?

6 doctors weighed in
Dr. Johanna Fricke
Pediatrics - Developmental & Behavioral
2 doctors agree

In brief: Not if your hypothy-

Roidism was treated prior to conception & your free t 4 was >10th %ile of the normal range throughout pregnancy.
If your ft4 was < 10th%ile especially < 12 wks. Post-conception, a slightly ?ed risk for psychomotor & language delays & school-age learning issues is best addressed early through your state health division's early intervention program or your school district's child find team at age 3.

In brief: Not if your hypothy-

Roidism was treated prior to conception & your free t 4 was >10th %ile of the normal range throughout pregnancy.
If your ft4 was < 10th%ile especially < 12 wks. Post-conception, a slightly ?ed risk for psychomotor & language delays & school-age learning issues is best addressed early through your state health division's early intervention program or your school district's child find team at age 3.
Dr. Johanna Fricke
Dr. Johanna Fricke
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Dr. Thomas Knecht
Internal Medicine - Endocrinology

In brief: No problem

Hi. If you use levothyroxine to treat hypothyroidism in pregnancy (which is strongly recommended), that is not in any way a risk to the fetus (for learning disabilities or any other health problem!).

In brief: No problem

Hi. If you use levothyroxine to treat hypothyroidism in pregnancy (which is strongly recommended), that is not in any way a risk to the fetus (for learning disabilities or any other health problem!).
Dr. Thomas Knecht
Dr. Thomas Knecht
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Dr. William Goldie
Pediatrics - Neurology

In brief: Not if needed

If you were taking the medication due to low thyroid and were carefully monitored, then there is no risk to your child.
The thyroid hormone is very important to normal infant development. If both you and your child have been monitored carefully, there is no reason to worry about bad effects. Babies who are found to have low thyroid too late may end up with significant learning problems.

In brief: Not if needed

If you were taking the medication due to low thyroid and were carefully monitored, then there is no risk to your child.
The thyroid hormone is very important to normal infant development. If both you and your child have been monitored carefully, there is no reason to worry about bad effects. Babies who are found to have low thyroid too late may end up with significant learning problems.
Dr. William Goldie
Dr. William Goldie
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Dr. James Ferguson
Pediatrics

In brief: No

The use of levothyroxine in pregnancy has not been shown to cause any problems for the fetus.
Only a small amount of maternal thyroid hormone passes thru the placenta & the fetus actually begins to make its own during pregnancy. If anything, proper treatment of mothers low thyroid normalizes her status & has a protective effect. Many issues are part of the ld question but this is not one of them.

In brief: No

The use of levothyroxine in pregnancy has not been shown to cause any problems for the fetus.
Only a small amount of maternal thyroid hormone passes thru the placenta & the fetus actually begins to make its own during pregnancy. If anything, proper treatment of mothers low thyroid normalizes her status & has a protective effect. Many issues are part of the ld question but this is not one of them.
Dr. James Ferguson
Dr. James Ferguson
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