At present, in Asian continent, the sex ratio is 1002, in South America it is 1018, North America it is 1027 and in Oceania it is found 990. The different sex ratios are seen at regional basis in the world. There are 139 countries in which sex ratio is favourable while in 72 countries it is unfavourable for the women. The sex ratio is different in different continents.

On one hand, in European continent, there is highest sex ratio of 1072, and on the other hand, in African continent, lowest sex ratio of 95 7 is found: An average sex ratio at the world level is 985. But on the basis of different decades, it is different in different regions. In 1980, there were 993 women per 1000 men in the world i.e. number of female-population was less then that of men by 7.

But in the year of 2004, it reduced and this number came down to 985, i.e., number of women was less than number of men by 15. This variation can be seen even on regional basis. There are many countries where more women are found than men in total population and in many countries the situation is just opposite.