If there is odor in the vulva, it may be caused by the following reasons: First, improper local care, not cleaning the vulva well, resulting in the accumulation of secretions, and the phenomenon of ectopic, to strengthen the local care of the vulva. Secondly, inflammation of the vagina, most commonly bacterial vaginosis caused by anaerobic bacterial infection, can lead to discharge with a big fishy odor, which will improve quickly after treatment. Third, cervical cancer or endometrial cancer may cause foul-smelling discharge and often bloody leukorrhea or sloppy leukorrhea, once this happens, go to the hospital for a timely checkup and it is recommended to do cervical cancer screening and ultrasound to understand the condition of the endometrium and, if necessary, diagnostic scraping to further confirm the diagnosis before treatment can be given.