The first time you have intercourse, the following precautions are taken: First, you must do a good job of contraception when you have intercourse. There is no absolute safety period for women, and even within the safety period there may be ovulation disorders, or impromptu ovulation that leads to ovulation. Therefore, it is important for women to use good contraception at all times during intercourse, and to use contraception throughout. Patients are advised to use condoms the first time they have intercourse, and to check if the condom has fallen off or is broken after intercourse. It is not recommended that patients take the emergency contraceptive pill, because the emergency contraceptive pill is damaging to the body and has a 2%-4% chance of causing an unplanned pregnancy. Second, patients must avoid intercourse during the physiological period, intercourse during the menstrual period can easily lead to infection. Third, the patient must pay attention to the strength of intercourse. If the strength is too strong, it is easy to cause damage to the vaginal wall or vulva, so if there is a lot of bleeding or pain after intercourse, go to the hospital in time. Fourth, we must pay attention to hygiene, it is best to use water to wash the genitals before intercourse.