T Nation

Reynaud's Syndrome and Low Thyroid?


Could there be a link between low thyroid and Reynaud’s Syndrome? I started T replacement 4 years ago at 140/week. In the beginning one of my symptoms was low morning temp. It was around 96 and a few times 95. I started T replacement and it jumped into the 97s pretty rapidly and I felt great. I still feel ok now but Ive been dealing with Reynaud’s for a while and now my morning temp is back into the 96 range with afternoon in the 97. I did some research online but it looked like the studies I found were old. I just ordered some Iodorol to see if I can get my temperature up.



"Could there be a link between low thyroid and Reynaud’s Syndrome?"
Do not know.
But low thyroid function would make it worse.

Please post labs with ranges.

What is your TRT protocol?

Please read the stickies found here: About the T Replacement Category

  • advice for new guys
  • things that damage your hormones
  • protocol for injections
  • finding a TRT doc

Evaluate your overall thyroid function by checking oral body temperatures as per the thyroid basics sticky. Thyroid hormone fT3 is what gets the job done and it regulates mitochondrial activity, the source of ATP which is the universal currency of cellular energy. This is part of the body’s temperature control loop. This can get messed up if you are iodine deficient. In many countries, you need to be using iodized salt. Other countries add iodine to dairy or bread.