If the yellowing of the underwear and odor, you can not take medication for the time being, this situation is mostly due to anaerobic bacteria infection caused by bacterial vaginosis, you need to use topical medication, for example, you can use bicarbonate lotion, rinse out the vaginal secretions, inserted into the vagina metronidazole suppositories or tinidazole suppositories for treatment, continuous use of medication for a week, this symptom will disappear. If the clinical symptoms do not disappear after using the medicine, it is recommended to exclude cervical cancer and endometrial cancer, and cervical cancer screening and ultrasound can be done to know the condition of the endometrial lining, and then decide whether it is necessary to give treatment according to the results. Women are advised to keep the vulva clean in daily life and eat less acidic and spicy stimulating food in diet.