There are two main possibilities to consider when you have advanced cervical cancer and a fishy odor from the vagina. First, it is gynecological inflammatory disease. Fishy vaginal odor caused by gynecological inflammatory diseases is mainly considered to be caused by bacterial inflammatory infection. In this case, if the patient does not have vaginal bleeding, you can choose to use metronidazole vaginal effervescent tablets, or tinidazole suppositories vaginal plugs, and can be orally ornidazole for treatment. Second, the main consideration of the patient lesion local tissue necrosis, and infection. In this case, patients can choose to use antibiotics for treatment, but the effect is not good, patients should focus on the treatment of lesions. Because in the late stage of cervical cancer, the opportunity of surgery is usually lost, patients can choose local radiotherapy.