Why is there a weird smell when flossing?

If you notice a funky smell when flossing, it's usually a wake-up call that something isn't quite right in those hidden gaps between your teeth. It's among those things nobody would like to talk about, but let's be honest—it's a fairly common experience. You're doing the right thing by cleaning back there, and suddenly, you get a whiff of something that definitely shouldn't be coming from the mouth area. It can be alarming, gross, and honestly, a little embarrassing, even if you're the only one who knows it's happening. ...

March 15, 2026 · 6 min · Lorie Lynn