If the cleanliness of the leukorrhea after pregnancy is three degrees, it indicates a mild inflammation of the vagina. If there are no clinical symptoms, treatment can be dispensed with, but you must keep your vulva clean, and you must pay attention to washing your vulva with warm water 1-2 times a day and changing your underwear regularly. Because of the increase of estrogen in the body after pregnancy, vaginal secretions and cervical secretions will increase, so the phenomenon of leucorrhea will increase. If you don’t change your underwear regularly and don’t pay attention to personal hygiene, it is likely that pathogenic bacteria will multiply and cause vaginal inflammation, so it is very important to keep your vulva clean. It is advisable to put your underwear under the sun to dry after washing, as the sun’s irradiation can play a sterilizing role, which is more beneficial to your health.