When it comes to having children, some couples face fertility issues that prevent them from conceiving naturally. For these couples, in vitro fertilization (IVF) may be the best option to have a baby. But how does this medical miracle work? In order to understand why IVF treatment is so successful, it’s important to first understand how fertility works. Once you know the basics of human reproduction, it’s easier to see how IVF can be such an effective treatment. So, let’s take a look at how fertility works and then explore the success rates of IVF treatment.