In vitro ejaculation is not a safe method of contraception during the fertile period, and its effectiveness is very limited. Compared to other forms of contraception, the rate of in vitro ejaculation is low, and it is not recommended if there are no plans to have children. In vitro ejaculation is a method that allows a man to quickly pull out his genitals before ejaculation to block the union of sperm and egg, which can easily lead to unwanted pregnancy. This is because when men are sexually excited, the prostate gland will secrete clear prostatic fluid, and part of the sperm stored in the seminal vesicles can be mixed into it, and men do not have the feeling of ejaculation. For women who do not have the requirement to have children, they can generally wear condoms throughout their sexual life during the fertile period; they can also use oral contraceptives or skin burial to achieve the purpose of contraception; they can also use intrauterine devices for contraception, and some people can also choose surgical ligation. Oral contraceptive pills, IUDs and skin burial are highly effective contraceptive methods with low probability of unintended pregnancy.