Vaginal odor and fishy smell may be caused by bad habits, but also can not be ruled out with bacterial vaginosis, trichomoniasis vaginitis and other related. 1. Bad life habits: such as not paying attention to personal hygiene, not pay attention to cleaning the vulva or excessive washing of the vagina, etc., the vaginal stimulation is enhanced, may appear vaginal odor. 2. Bacterial vaginosis: manifested by an increase in vaginal discharge, accompanied by foul or fishy odor, grayish white or grayish yellow, thin, fishy smell, especially after sexual intercourse is more obvious. 3. Trichomonas vaginitis: manifested by an abnormal increase in vaginal discharge, often thin foamy, fishy odor, severe leukorrhea can be mixed with blood, when mixed with bacterial infections when the discharge is purulent. Vaginal odor fishy odor causes more, it is recommended to timely to the hospital to identify the cause of the disease, under the guidance of a professional doctor to take targeted treatment, so as not to delay the condition. Daily attention to personal hygiene and cleanliness, wear loose, cotton underwear.