Birth rate
The region of Sub-Saharan Africa has the highest birth rate in the world. As of 2016, Niger, Mali, Uganda, Zambia, and Burundi have the highest birth rates in the world. This is part of the fertility-income paradox, as these countries are very poor, and it may seem counter-intuitive for families there to have so many children. The inverse relationship between income and fertility has been termed a "demographic-economic "paradox"" by the notion that greater means would enable the production of more offspring as suggested by the influential Thomas Malthus.
Family planning
Most of the countries with lowest rates of contraceptive use, highest maternal, infant, and child mortality rates, and highest fertility rates are in Africa.
Only about 30% of all women use birth control, although over half of all African women would like to use birth control if it was available to them. The main problems that preventing access to and use of birth control are unavailability, poor health care services, spousal disapproval, religious concerns, and misinformation about the effects of birth control. The most available type of birth control is condoms.
A rapidly growing population coupled with an increase in preventable diseases means countries in Sub-Saharan Africa face an increasingly younger population.