Throughout the world, especially in advanced nations, notably much work has been done in the field of sex education. There are research studies and reports published by different agencies working in and on this field. However, in developing countries, very few studies have been carried out in the domain of sex education due to significant social constraints. The conservative societies, at most of the fronts, look at sexuality and related issues with extra sensitivity. At large, people also prefer to avoid it. Therefore, against all such traditional odds, this paper highlights the significance of not only studying but talking about issues related to human sexuality. This paper is a review of the studies in the field of sex education.