Fishy vaginal odor is usually seen in bacterial vaginitis, which is treated with metronidazole tablets or intravaginal metronidazole suppositories. Bacterial vaginitis is associated with a decrease in lactobacilli and an increase in anaerobes and Gardnerella. Metronidazole has a therapeutic effect on anaerobic bacteria as well as Gardnerella, while it has no killing effect on Lactobacillus, so the application of metronidazole is recommended. In addition, for bacterial vaginitis, you can use intravaginal Lactobacillus capsule, which is very helpful to improve the dysbiosis in the vagina. For the case of vaginal fishy odor, you also need to pay attention to the cleanliness and hygiene of the vulva, change underwear and panties diligently, and prohibit the consumption of spicy and stimulating foods.