If the vaginal discharge smells like rotten eggs after menstruation, the most common clinical cause is bacterial vaginosis caused by anaerobic bacterial infections, and most of them can be detected as BV infections in the leukorrhea after laboratory examination, and it is recommended to give treatment with metronidazole. In addition, if there is a rotten egg smell, it is also related to cervical cancer and endometrial cancer, and clinically it is necessary to do gynecological examination to find out whether there are localized cervical organisms. If you have not been screened for cervical cancer within a year, it is recommended to do so as soon as possible to find out if the cervical epithelium has become diseased, and it is also recommended to do an ultrasound to find out the condition of the endometrium if necessary. If there are abnormal echogenic masses in the lining of the uterus, diagnostic curettage is recommended as soon as possible to find out if the lining of the uterus is diseased.