It is recommended that women’s underwear 1 day 1 change, because women have leukorrhea this physiological phenomenon, so if the underpants more than 1 day without replacement, there will be secretions on the upper side of the vulva will cause discomfort, and easy to produce bacteria, is not conducive to the health of the body. If there is no leukorrhea, panties should also be 1 day 1 change, because the vulvar skin is more delicate, wearing a day of panties, there will be a lot of bacteria on the top, timely replacement, you can avoid skin inflammation, but also to prevent a variety of gynecological diseases and urethritis. If you use sanitary napkins on your underwear during menstruation, you can change them once every 2-3 days, and try not to take too long. Replacement of underwear should be washed in a timely manner, in direct sunlight, or boiling water. Diligent change of underwear at the same time do not forget to wash the vulva, no matter whether it is menstruation or usual, should use warm water to wash the vulva 1-2 times a day.