If a woman develops wet underwear after pregnancy, the following possibilities are generally considered: Firstly, since the estrogen and progesterone secreted by the ovaries are at a continuously increasing level after pregnancy, the high level of estrogen and progesterone stimulation will cause a significant increase in leukorrhea secretions, which will cause wet underwear all the time. Secondly, if a woman has itchy vulva along with wet panties and obvious leucorrhea like bean curd, it is considered to be an abnormality caused by pregnancy combined with mycosis fungoides. Finally, if a woman had cervical erosion before she became pregnant, she should also consider the excessive discharge caused by the increase of the cervical erosion surface due to the high estrogen level after pregnancy.