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Veronika Denner: So What Is Endometriosis?

Veronika Denner/LinkedIn

Nov 14, 2026, 16:25

Veronika Denner: So What Is Endometriosis?

Veronika Denner, Research Fellow at Big Data Institute, shared on LinkedIn:

“We have made real progress on endometriosis awareness. But I have noticed something that worries me.

More people than ever know what the word endometriosis is. Far too many still haven’t heard it, and those conversations matter too. But lately I keep running into something else.

I have talked to a lot of friends and people around me at Oxford, smart, caring, educated people who do know the word. They know diagnosis takes forever (around a decade almost everywhere) and that women’s health gets overlooked. Then I ask what endometriosis actually is, and I often get ‘isn’t that inflammation of the uterine lining?’

That’s endometritis. A completely different condition.

So what is endometriosis?

Endometriosis is tissue similar to the uterine lining growing outside the uterus– on the ovaries, bowel, bladder, pelvic wall, as well as the diaphragm or lungs.

Essentially, it can grow anywhere and It’s not confined to the uterus at all. In the most severe cases, the damage from endometriosis (chronic inflammation, adhesions, etc.) can mean a collapsed lung or a bowel obstruction. But even away from those extremes, the negative impact on quality of life and on health across the life span is enormous.

Infertility affects roughly a third to half of people with the disease. It’s linked to a higher risk of cardiovascular disease, particularly coronary heart disease. It’s associated with autoimmune conditions too. Endometriosis is everything but a ‘mere uterine condition.’

This is why getting the definition right matters so much. Endometriosis is a systemic disease, not a problem sitting in one organ. If the majority of people picture it as something contained in the uterus, we are doing patients a huge disservice.

And this was not one person who mixed up the definition. It’s happened to me many times now.

I am not saying this to call anyone out. Nobody is born knowing the definition of endometriosis, and the names ‘endometritis’ and ‘endometriosis’ are confusingly similar. But if people know there’s a problem without knowing what the disease actually is, awareness stays shallow, and so does care.

Getting the word out was step one. Getting the definition right is step two.

Has anyone else run into this? Curious whether it’s just my circle or more common…”

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