Contraceptives are mainly divided into condoms, contraceptive stickers and so on, the specific use can be selected according to their own situation. 1. Condom: the role is to avoid pregnancy and infected diseases, according to the genitals to choose the right size for themselves, tear open the package, check whether the condom is leaking, penis erection, the condom over the glans, with the hand backward to the condom to the root of the penis, after ejaculation, pinch the condom at the bottom of the penis and turn downward, remove the condom, check for breakage. 2. Contraceptive paste: contraceptive paste use, generally from the first day of menstruation on the use of a weekly replacement, generally about 21 days of use, you need to stick it on the body of the buttocks, arms, abdomen shoulders, mainly through the drug penetration of the skin, so as to achieve the role of contraception. The specific method of use should be chosen according to your own situation, or you can use it after consulting your doctor.