What Causes Low TSH Levels?

Posted on Wed, 3 Sep 2014

Question: my wife tsh last year was july was 19 and now it is 3.39 without any medicine is it possible

Answered by Dr. Binu Parameswaran Pillai (1 hour later)

Brief Answer:
Hi

Detailed Answer:
Hello,

Good day.

Yes, it is possible for TSH to drop like that. TSH is a dynamic hormone and it changes according to many factors. Sometimes when someone is recovering from an illness, TSH can go high. It slowly come down to normal. So it is possible this way.
What is her Free T4 level. It would be good to do an Anti TPO as well
Regards
Binu

Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar

Follow up: Dr. Binu Parameswaran Pillai (31 minutes later)

thanks dr. pls see attached reports of my wife for free t4

what will anti TPO tell us

Answered by Dr. Binu Parameswaran Pillai (9 hours later)

Brief Answer:
Hi

Detailed Answer:
noted the TSH results on both occasions,
A positive anti TPO would say that she has auto immunity against thyroid gland and there is a higher chance of future development of hypothyroidism.

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Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar