Received October 07, 2022
Accepted May 25, 2023

Brazil follows the trend of countries that went from high fertility to below replacement level; in many countries, fertility rates continue to fall, often to levels well below population replacement, especially in Europe and East Asia. Since 2006, Brazil has presented rates below the population replacement level, with regional variations. The shift to a pattern of late motherhood is central to understanding this phenomenon, as well as the increased use of reproductive technologies and the global market for assisted reproduction. Demand for services based on Assisted Reproductive Technologies (ART) has increased in European countries and the United States. Also, in Brazil, there is a growing demand for assisted reproduction services, which private clinics offer at a significantly high cost. This article provides an overview of these issues. It raises new questions and dimensions of analysis by problematizing the socio-demographic, legal, and ethical aspects of assisted reproduction, which need to be explored in future population studies.