Connection between GERD and UC?

Who knows? One theory is GERDS is caused by small intestine bacterial overgrowth. UC goes hand in hand with dysbiosis of the large intestine (there's a chicken and egg question about UC and dysbiosis). It seems plausible to me that the dysbiosis of UC has knock on effects further up the digestive chain over time. but sadly, in this and other AI areas, there's not a lot of work being done to connect the dots.

No, not the truth as far as I understand. Reflux disease is a mechanical issue at the esophageal sphincter going to the stomach. Millions of people have GERD and don't have UC.
Diaphragmatic hernia causing intestines pressing against the stomach can cause reflux...again causing a problem at the sphincter.

People do get esophageal spasming....possibly on its own or response from reflux and acid erosion of the esophagus.

Some people have CD affecting the esophagus.

Some people have undiagnosed h. Pylori causing continual gastritis...

I cant see how SIBO is a theory, and not everything is connected to having UC.

q

quincy, while some GIs say that GERDs is purely a mechanical problem, there are plenty who think it is more complicated than that, at least for some people who have it. You are right that most people with GERDs don't have IBD, but to say therefor that there is no connection is to vastly over-state the certainty of medical understanding about GERDs and digestive disorders in general.