There is no authoritative information on whether it is possible to wash immediately after sex. Usually those who do not plan to have children can wash immediately after sex to avoid secondary infection; if they do plan to have children, it is generally recommended that they wash after 15 to 20 minutes. Currently, there is no authoritative information on whether or not to wash immediately after sex. Usually, it is necessary to judge according to the actual situation, generally speaking, for the people who do not have a birth plan, you can wash immediately after sex, mainly to avoid secondary infection, to prevent the occurrence of cervicitis, endometritis, prostatitis and other diseases. However, for those who have a childbearing plan, you don’t need to wash immediately after sex, you can wait for 15-20 minutes before washing, mainly to let the semen stay in the body for a longer period of time, so as not to affect the conception. In short, usually need to pay attention to sexual hygiene, keep private parts dry and clean, if there is discomfort, need to go to the regular hospital in time.