Can a Thyroid Nodule Cause Problems with Pregnancy?

Cynthia Flynn's picture


Dear Midwife,:
This is my second pregnancy. The first resulted in a spontaneous abortion at week 7 back in February. I took 2 positive home tests last week, so I am about 5 weeks from first day of last menstrual period.

My question is regarding the possibility of low thyroid levels. I have had a decent sized thyroid nodule for the past 8-10 years, but have been asymptomatic from what I can tell. I do not take any medication. Since I did have a prior miscarriage, I am concerned that low thyroid levels may have had something to do with it.

My first pre-natal visit is not until week 8, which I know is standard, but I wonder if a blood test before that time to check my thyroid levels might be a good idea. From what I have read, early supplementation is critical to prevent miscarriage and to prevent low IQ and low birth weights. Should I ask for a blood test, and could the pregnancy be in jeopardy?

Thank you for your consideration,

G in SD


Yes and yes!!! Hypothyroidism is a very easily corrected condition that can cause miscarriage.

-- Cynthia, CNM. PhD.