The white fluid that comes out of the vagina after sex is a normal phenomenon. The fluid that comes out is a mixture of semen and vaginal secretions. During sex, the male semen is ejaculated into the female vagina, where it liquefies and turns into a more liquid fluid. Under the effect of sexual stimulation, the mucus glands of the female cervix and the glands of the endometrium, the secretions will increase accordingly, and the exudate of the vaginal wall will also increase. In order to increase the chance of conception after intercourse, some women use pillows to rest on their hips after sex, which can help delay the flow of semen and increase the chance of conception. The woman who is not preparing for pregnancy does not need to pay special attention to this issue, and can wash in time after sex.