Ask a trusted person to smell your breath
Lick the inside of your wrist, let it dry, then smell it
Cup your hands over your mouth and nose, exhale, and smell the air
Floss between your back teeth, then smell the floss
Scrape your tongue with a spoon or tongue scraper, then smell it
Notice a bad taste in your mouth that keeps coming back
Check for dry mouth, especially after waking up
Pay attention if others step back or turn away when you speak
Notice if your breath is worse in the morning or after long periods without eating
Watch for signs like gum bleeding, tooth pain, or a coated tongue
See a dentist if the smell persists despite brushing and flossing