Women’s normal leukorrhea may also have a faint fishy smell, but if the past vaginal secretions have no fishy smell, the sudden appearance of fishy smell also belongs to the anomalies, commonly due to the following reasons: 1, vaginal inflammation caused by the routine leukorrhea test can understand the causative organisms causing vaginal inflammation, to give the appropriate treatment, the vast majority of anaerobic infections caused by the. 2, to exclude the cervical epithelial lesions, it is recommended to To rule out cervical epithelial lesions, it is recommended to do cervical cancer screening to find out whether the cervical epithelium is cancerous and whether there are pre-cancerous lesions, etc. 3. It may be caused by endometrial cancer, and diagnostic curettage is needed if necessary, and the scraped tissues should be sent to the pathology laboratory to decide the next step of the treatment according to the diagnosis of the pathology.