The normal leukorrhea during pregnancy is that the patient will experience an increase in the amount of leukorrhea, slightly more than before pregnancy, but the color of the leukorrhea and the smell of the leukorrhea are normal. The patient has no local redness or more severe itching. In individual cases, if the leucorrhea is particularly abundant, stimulation of the patient’s vulva may result in slight itching discomfort. The itchiness will be significantly reduced or disappeared after localized external washing with water, light salt water or Chinese medicine. If this is the case, it is normal leukorrhea and no special examination or treatment is needed. After pregnancy, the level of estrogen and progesterone will increase, and the entire uterus will be enlarged and congested, which will lead to the secretion of secretion glands in the female reproductive tract, thus leading to the physiological increase of leucorrhea.