Odor around the time of menstruation may be caused by infections of the reproductive system, or by failure to change sanitary napkins and underwear in a timely manner, resulting in odor caused by the action of bacteria on menstrual blood and vaginal secretions. The symptoms can be gradually relieved by wearing loose, breathable underwear and changing panties and sanitary napkins regularly. Reproductive system infections, most commonly vaginitis and cervicitis, are caused by bacterial and viral infections as well as specific pathogens, resulting in an increase in vaginal secretions, which produce special gases under the action of bacteria and viruses, leading to an odor. Prompt treatment is needed to avoid the possibility of upstream infections that can lead to pelvic inflammatory disease. Treatment requires the use of local suppositories as well as systemic medications, which should be chosen according to the condition after the examination of the leukorrhea.