Contraception is a method designed to prevent, either reversibly and temporarily, or permanently, the fertilization of an egg by a spermatozoon or, if fertilization occurs, the implantation of the fertilized egg. No method of contraception is 100% reliable. Of all of them, only the male and female condom offer protection against Sexually Transmitted Infections, in particular HIV transmission.Scientific methods of contraception appeared in the course of the 20th century, and especially in its second half. Intra-uterine devices, or IUDs, made their appearance around 1962, and polyethylene became the reference material, marketed in hundreds of models.In Mali, the concept of birth spacing emphasizes the notion of the interval to be maintained between births, without regard to family size.The level of use of Modern Contraceptive Methods remains low in Mali, as in most African countries.