After pregnancy, due to the increase of estrogen level, the vaginal discharge increases, that is, the leucorrhea increases, but it is milky white and does not feel uncomfortable, this phenomenon is normal. If the leucorrhea increases and is pus-like, i.e. purulent, you have vaginitis. Vaginitis is usually caused by sexual intercourse or the use of unclean sanitary products, or the use of non-breathable underwear. If you have vaginitis after pregnancy, it is important to go to the hospital to have your leukorrhea tested. Because there are many types of vaginitis, the treatment for each type of vaginitis is also different. Having vaginitis after pregnancy has effects and can cause miscarriage and infection in the early stages. If you have vaginitis in the late stage, you will easily get chorioamnionitis and premature rupture of membranes, which can cause premature birth. Therefore, if you have abnormal leucorrhea, you must go to the hospital for examination and treatment as soon as possible.