Halitosis, or bad breath, refers to odors emitted from the mouth or other air-filled cavities such as the nasal cavities, sinuses, and throat, which can significantly impact social interactions. It is advised that patients experiencing gum bleeding or bad breath visit a hospital for dental cleaning, which may include polishing and scaling to effectively remove dental plaque, tartar, and debris, thus eliminating most bacteria. For severe cases of bad breath, it is recommended to seek medical treatment at a hospital under the guidance of a doctor, as it is generally treatable. Patients are advised not to be overly anxious, feel inferior, or be stressed psychologically. Additionally, maintaining daily oral hygiene is crucial; it is reasonable to brush teeth at least twice a day, in the morning and evening, and to rinse the mouth after each meal. Using dental floss to clean between the teeth can help eliminate oral odors.