Contraceptive measures without condoms are as follows: First, intrauterine placement of birth control rings, usually within 3-7 days after menstruation, placement of birth control rings. The years of the birth control ring can be 5, 8, 10 or 20 years, which can be chosen according to the individual’s situation, and the contraceptive rate of the birth control ring can reach more than 98%. If you want to have a child, you can get pregnant in the second month after removing the birth control ring; Second, oral contraceptives, there are short-acting oral contraceptives and long-acting oral contraceptives. Short-acting oral contraceptives are taken on the first day of menstruation for 21 days, with a 7-day break and a second cycle starting on the eighth day. Long-acting oral contraceptives are taken as one pill on the fifth and tenth day of menstruation in the first month, and then one pill per month in the second month, subject to the date of the second pill; three, subcutaneous implantation of contraceptive needles, also a kind of contraceptive pills, the general period of five years; four, vaginal diaphragm, in the first 1-2h before coitus, put in the posterior fornix of the vagina and the pubic symphysis, to prevent sperms from entering the The vaginal diaphragm is placed between the posterior vaginal fornix and the pubic symphysis before intercourse to prevent sperm from entering the uterine cavity, thus achieving contraceptive effect.