Halitosis, the unpleasant odor from your mouth, can stem from various causes. Poor dental hygiene habits, allowing bacterial growth and plaque accumulation, often lead to this condition. Oral issues like gum disease or dry mouth contribute too. Smoking cigarettes, consuming odorous foods like garlic, can also result in foul breath. To combat bad breath, practice thorough brushing, flossing daily, using antimicrobial mouthwash regularly. Stay hydrated by drinking ample water. Seek professional dental cleanings periodically for optimal oral health.