Halitosis, also known as bad breath, is a common oral health issue that can be brought on not only by dental issues but also by certain systemic illnesses like diabetes, stomach problems, etc. Neglecting oral hygiene, pyorrhea in the gums, food getting stuck in decayed teeth, and an unclean tongue can all lead to bad breath. You might be advised to use mouthwash, instructed on proper brushing and flossing techniques, or given gum or dental decay treatment.