Bad breath is a common clinical symptom, causing women’s bad breath for many reasons, commonly for bad habits, periodontal disease or systemic diseases, patients can adjust habits, medication and other methods to relieve symptoms. 1, adjust habits: avoid eating garlic, onions and other foods with irritating odors, or candy, moon cakes and other foods that are too sweet and easy to cause tooth decay, should also try to Do not smoke, do not drink alcohol; dinner should not be eaten too late, too full, to prevent bad breath caused by indigestion due to rest immediately after eating; brush teeth in the morning and evening, rinse mouth after meals, with the use of mouthwash, dental floss and other ways to clean the mouth; patients should drink more water to keep the mouth moist, to avoid bad breath due to reduced saliva secretion; can also chew tea or chewing gum to quickly and briefly relieve bad breath; for the difficult to remove the calculus caused by Bad breath, should be regularly to the Department of Dentistry scaling, can largely reduce the symptoms of bad breath; 2, drug treatment: active treatment of periodontal disease, such as through the mouthwash containing essential oils, chlorhexidine gargle to relieve bad breath symptoms, or oral triclosan, ciprocloride and other antibacterial drugs to inhibit the formation of dental plaque. If bad breath still exists through the above measures, other diseases should be considered, such as purulent tonsillitis, atrophic rhinitis, acute and chronic gastritis, peptic ulcer, diabetes, etc. Relevant examinations should be conducted at the hospital as soon as possible to clarify the cause and carry out targeted treatment.