The role of the pill is equivalent to that of the pill, the chance of choosing this method of contraception can reach more than 99%, it is recommended that women in the process of intercourse, not only to choose the correct way to contraception, but also to change the bad habits of sexual life, such as excessive frequency of sex, do not pay attention to cleanliness and hygiene. The pill is usually inserted into the vagina half an hour before sex, and if there is no sex for more than four hours, it needs to be inserted again to ensure the effectiveness of contraception, the pill is a form of contraception for women, usually allergic to condoms or men who are not used to using condoms, can choose to use the pill.