If contraception is used during intercourse, the white discharge is mainly the woman’s leukorrhea, which is normally milky white or colorless and clear. If no contraceptive measures are taken, the white discharge may be semen. Women must pay attention during intercourse, whether male or female, before intercourse to ensure that the genital hygiene, otherwise it is easy to suffer from disease. It is also very necessary to pay attention to cleaning after intercourse. For women, it is important not to wash excessively as it may upset the acid-base balance of the vagina. Both men and women should refrain from having sex if they have genital inflammation to avoid cross-infection, and take contraceptive measures if they do not need to have children.