Symptoms of bad breath in women may be physiological factors, or it may be caused by possible causes in both men and women: caries, periodontitis, diabetic ketoacidosis and other diseases. Different causes, different treatments, mainly drug treatment, surgical treatment and so on. Women’s bad breath may be caused by consuming too much onion, leek, stinky tofu and other foods with irritating odors, or it may be caused by poor oral hygiene habits, resulting in a large amount of food residue embedded in the teeth for a long time. Physiological bad breath can be reduced or eliminated by rinsing, brushing and eating. If the bad breath caused by caries, can also be accompanied by toothache, gum swelling and other symptoms, can follow the doctor’s instructions to use ibuprofen, acetaminophen and other anti-inflammatory drugs for dental caries, but also need to give surgical treatment, such as bonding restoration, silver amalgam filling surgery, and so on. If the patient is periodontitis, can be used locally minocycline gel, chlorhexidine acetate solution, etc., to achieve the role of sterilization, but also can use metronidazole, erythromycin and other antibiotics systemic medication. For patients with more severe periodontitis and less effective medication, surgical treatment, such as soft tissue transplantation, tooth extraction and implantation, is required. Patients with diabetic ketoacidosis can also cause bad breath, usually rotten apple flavor, when active treatment of the primary disease is needed. Commonly used drugs include insulin, potassium chloride, sodium bicarbonate, etc., has achieved the purpose of lowering blood sugar and correcting electrolyte disorders. Women with symptoms of bad breath, exclude physiological factors, should be timely consultation, identify the cause of the disease, by the doctor to give targeted treatment.