It is important to understand the social, physical, and administrative environment in which the grassroots components of a health program function and provide services.

Change in the size of a population takes place due to births, deaths and migration.

One of the purposes of family planning programmes in developing countries is to provide for the unmet needs of couples for contraception.

Contraception as a behavioral phenomenon has been the focus of many population researches, during the last half a century. In fact, explaining contraceptive behavior is a complex theoretical effort. Learning, motivation,

Both as a concept and as a rallying point for gender-based concerns, the emergence of reproductive choice is a relatively new phenomenon in the area of population policy. For decades on end, population policy had been primarily, if not solely, concerned with the regulation and control of human fe

In the year 1950, injectable contraceptives were developed (containing only progestin). For the treatment of endometriosis and endometrial cancer as well as of painful menstrual periods, (dysmenorrhoea), excessive hair growth (hirsutism), and bleeding disorders, progestins were finally used.

There can be little doubt that the last two hundred years have seen advances in health which have seldom before been witnessed in human history.