Bacteria in your mouth may travel to the gut and trigger stomach cancer, research finds

Summary: Did you know the germs in your mouth might be taking a trip down to your stomach? New research shows a strong link between mouth bacteria and stomach cancer. Scientists tested spit and stool samples from over 400 people. They found that people with stomach cancer had a lot of the same mouth germs—like the ones that cause strep throat—living in their guts.

This means bacteria can travel from your mouth to your stomach and cause serious trouble by damaging cells. While doctors say we need more research before this becomes a standard medical test, it shows how important it is to keep a healthy balance of germs in our bodies. In the future, a simple spit test might even help doctors catch stomach cancer early!

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