Thyroid UK
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Endometriosis and Thyroid

Hey, I have hypothyroidism, vitamin d and vitamin b12 deficiency. I also have endometriosis and adenomyosis. I had my endometriosis removed 2 weeks ago and aside from the exhaustion I'm recovering quite well. I have heard that hypothyroidism and endometriosis are often connected. My question really is does anyone know how closely connected thyroid trouble and endometriosis are as today my heart is nearly beating out of my chest! I thought I'd ask incase there is a connection with the operation. Thanks!

10 Replies

This is a link which might be helpful:-

If your heart is beating uncomfortabley maybe your GP can give you a small dose of beta-blocker as your op might have caused palpitations.

(I am not medically qualified)


Thanks shaws


I had endometriosis and adenomyosis. I was also told in my 30s (which was a long time ago) that my thyroid was "borderline underactive" but I don't know any TFT results from that era.

When I finally became so ill that I had to take an interest in my health, I did start to look for connections between endometriosis and hypothyroidism but I never found any. I am absolutely convinced that the two things are related, and my reading suggests that other people think so too, including researchers. But the proof has been hard to find.

I did my research into the connections between endometriosis and hypothyroidism when I was still a novice at doing research and my health problems, so I may have missed something glaringly obvious.


Regarding your current problems, they may be caused by several things...

1) You may have bled a lot during surgery. If your iron status was poor before the surgery then you might not have needed to lose a lot to reduce your iron status to something which would affect the heart. I had a long-term bleed from my GI tract. I developed severe palpitations and tachycardia (fast heart rate) as a result. Fixing my low iron has improved the behaviour of my heart a lot.

2) If your anaesthetic contained nitrous oxide (laughing gas) it may have massively reduced your B12 reserves. If you had low levels to begin with then an anaesthetic could cause big problems.


Note that iron and associated levels should be tested before supplementing iron in therapeutic doses, because excess iron is poisonous.

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I think my iron tends to be a little high (apparently it's common if you have Celtic roots) and I haven't bled too much really but it could be the latter - took a b12 shot yesterday. I also think that one of my stitches might be infected looking at my plaster... I can see a little patch of green 🤢 Well I'm seeing the consultant today so I will tell him - first thing I thought was "thyroid", suppose I'm used to thinking that way but I will def tell him now in light of this.


Don't, whatever you do, assume my list of 2 things is complete!

They were just the two things I thought of. It could well be that your thyroid has been disturbed by the anaesthetic and surgery.


No, it's okay but it's good to know that it's worth mentioning to the consultant as opposed to waiting for my appointment with the endo


Interesting....I've also had endometriosis, wonder how many others have?


Apparently there is a connection... my mother has endometriosis and I think she has a touch of hypothyroidism

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I always got bad palps after anaesthetic (dentist). I think I reacted to the adrenaline in it. I now have the adrenaline free version. Don't know if you can ask for that for other surgical procedures.


Great that your Endometriosis was removed, but you should ask your doctor what you can do to stop it recurring. If it is caused by Inflammation, what can you do to reduce the Inflammation ?

Here is a link to: "23 ways to fight Inflammation"

You might like to read more about how increasing your Vitamin D and Omega-3 might help:

What if your Endometriosis is caused by things that you eat, or don't eat ?

Here are some questions to ask your doctor about Endometriosis:

* What causes it ?

* How will looking at it and scraping it help me get better ?

* What can I do to stop it recurring ?

* Could my illness be caused by things that I eat, or don't eat ?

* What can I change about my diet and lifestyle to help my body repair itself ?

Search online for "anti-inflammatory diet"

This and the suggestions below may help you to reduce your pain

Maybe search for BANT and interview 10 local Nutritional Therapists who have had success advising about Endometriosis before choosing which one to work with

Here are 3 well-proven natural ways to reduce the Inflammation that causes the pain of Endometriosis

* Increase your Vitamin D

* Increase your Omega-3

* Reduce your Omega-6

Search for more about Endometriosis here:




Some people have reported that eating specific foods like meat or dairy gives them an instant flare-up

Which foods make your Endometriosis worse and which help ?



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