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Updated: Oct 31, 2025

Rodent Estrous Cycle Monitoring Utilizing Vaginal Lavage: No Such Thing As a Normal Cycle
Published on: August 30, 2021
[Trends in contraceptive use: A thousand-year-old practice and two revolutions]
1Centre de recherche en démographie (DEMO), Université catholique de Louvain, Place Montesquieu 1, 1348 Louvain-la-Neuve, Belgique - Institut national d'études démographiques (Ined), 93300 Aubervilliers, France.
Abstract:
The use of contraceptive methods seems so old that it is difficult to know precisely when human beings first wanted to control their fertility. However, two major changes have been observed over time. In the mid-18th century in France and during the 19th century in Europe, the "first contraceptive revolution" was characterized by the adoption of "withdrawal" by married couples. The "second contraceptive revolution" took place from the second half of the 20th century, with the gradual spread of the pill and the Intra-Uterine Device (IUD) among different social groups. Since then, contraceptive practices have been largely medicalized, and fertility control has become an exclusively female responsibility.
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