How to Tell if You Have Bad Breath

Bad breath can be embarrassing. It's easy to unwittingly walk around with a mouth full of halitosis until a brave friend–or, worse, a crush or romantic partner–tells you that your breath smells bad. Fortunately, there are several "breath tests" that you can perform on yourself to discern what your breath smells like. These methods may not tell you exactly what other people smell, but they should give you a good indication.