Bad breath, the medical term, halitosis, being rarely used, means breath that has a nauseating scent. These odors may have different origins: food stuck in the teeth or oral cavity
encourage the proliferation of bacteria involved in breaking down these residues whose products are malodorous. Dental or gum disease
can also be the cause. Certain medications or certain foods or alcohol are also frequently involved. In general, poor oral hygiene
is the main cause of halitosis.