Get your health question answered instantly from our pool of 18000+ doctors from over 80 specialties
159 Doctors Online

By proceeding, I accept the Terms and Conditions

Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

HCM Blog Instant Access to Doctors
HCM BlogQuestions Answered
HCM Blog Satisfaction

What Causes Low TSH Levels During Pregnancy?

Hello, My name is Millie I am 11 weeks pregnant. On Nov 12 I was 9 weeks and the doctor appointment they draw some blood to be tested. That same day they called me that my Thyroid was low -THS 0.2 and need it to come back in 2 weeks to be tested again. I went in last week and they call me today still low now as 0.1. I asked about my T3 and T4 and they say those came back normal. To come back again in 3 to 4 weeks for another blood test. I am concern because I was reading about the importance of this on the fetus development as I am on the 1st trimester. This is my second pregnancy and with my 1st pregnancy I have none of this issue. I did lose 10 pounds and I have been very sick with nausea and some throwing up (maybe 3 times) but more nausea all day long. I would like to know what should I do as I am concerned with this test numbers been so low and what to do in the meantime as I am very nervous for the baby at this point. As to mention the doctor thinks is because my hormones levels right now are up and down and I have never have a Thyroid issues in my life and I am 32 years old. Please I will appreciate your advice.
posted on Fri, 4 Dec 2015
Twitter Tue, 16 Feb 2016 Answered on
Twitter Tue, 16 Feb 2016 Last reviewed on
Report Abuse
General & Family Physician,  's  Response
Hi ma'am.

You seem to be having mild hyperthyroidism in which TSH is low but all other parameters (especially free T4) are normal. This grade of hyperthyroidism does not require any treatment and usually settles on its own. We should especially avoid anti-thyroid medication as it can cross the placenta and reach the fetus thus interefering with the fetus's thyroid profile.

Best wishes.
I find this answer helpful
Note: For further follow up on related General & Family Physician Click here.
Disclaimer: These answers are for your information only and not intended to replace your relationship with your treating physician.
This is a short, free answer. For a more detailed, immediate answer, try our premium service [Sample answer]
Share on
 

Related questions you may be interested in


Loading Online Doctors....
What Causes Low TSH Levels During Pregnancy?

Hi ma am. You seem to be having mild hyperthyroidism in which TSH is low but all other parameters (especially free T4) are normal. This grade of hyperthyroidism does not require any treatment and usually settles on its own. We should especially avoid anti-thyroid medication as it can cross the placenta and reach the fetus thus interefering with the fetus s thyroid profile. Best wishes.