Condoms are also known as condoms, it is a medium-effective form of contraception, the correct use of condoms, the effective contraceptive rate can reach more than 98%. If the general use, the effective contraceptive rate can only reach 85%, what is the correct use of condoms, mainly to do the following 2 points: 1, the whole of sexual life to insist on wearing. 2, insist on every sexual life are used. If you do the above 2 points, the effective contraceptive rate of condoms can reach more than 98%. The effective contraceptive rate can only reach 85% if the condom is used with a fluke mentality, sometimes using and sometimes not using condoms, or wearing condoms only when the man ejaculates. Condoms are not only safe contraception, but also effective in preventing sexually transmitted diseases, so it is still recommended that you use condoms when having sex.