Thyroid UK

Dexamethasone Suppression Test and Period?

Repost, because my first one did not receive any responses.

Hi, everyone! I had a dexamethasone suppression test the other week. Has anyone ever had a change in the periods due to taking steroids? I'm not sure if it's related or not... I took the dexamethasone on Thursday night and I got my period on 1/7/17 It's 7-10 days early and I'm usually very regular. Is this a common side effect? Weird because I only took one, 1 mg dose.

Thoughts? Should I let him my endocrinologist know when I speak with him?

Thank you!

6 Replies

It's unusual not to have some sort of response when posting. Maybe it was because no-one had an answer and your post might have moved on quickly if there were a lot of new posts after yours. This is a link re the medication with a list of autoimmune diseases.

It seems to be quite a powerful steroid.

If you are hypothyroid, menstrual cycle can be affected.


Thank you! One of the moderators said that it would be OK for me to repost.

It does seem to be a very potent steroid, I was just shocked as it was such a small, one time dose.

I'm also not hypothyroid (that I'm aware of)

Thank you!!


I hope you aren't hypo but has your doctor taken a blood test. No one did mine and I remained undiagnosed. I saw about ten doctors and not one knew any symptoms and gave me different diagnosis for some other problem. Yes, it is fine to repost if you've not had a response.


Hi, yes I have been tested! I guess more of my symptoms fit more of a hyperthyroid state. Hope that you are doing well now :)


Hi, I would say it is definitely a possibility. Any change in the endocrine system seems to have an effect in another part of it. Hormones are powerful, in my experience each time I tweak a thyroid dose my periods are affected, spotting etc. I would mention it to your endocrinologist but I doubt it will surprise him


Thank you! That was my thought as well. It makes sense with tweaking the hormones.

I'll mention it when I hear back regarding my results.

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