Sexualization (sexualisation in Commonwealth English) is the emphasis of the sexual nature of a behavior or person. Sexualization is linked to sexual objectification, treating a person solely as an object of sexual desire. According to the American Psychological Association, sexualization occurs when "individuals are regarded as sex objects and evaluated in terms of their physical characteristics and sexiness." "In study after study, findings have indicated that women more often than men are portrayed in a sexual manner (e.g., dressed in revealing clothing, with bodily postures or facial expressions that imply sexual readiness) and are objectified (e.g., used as a decorative object, or as body parts rather than a whole person). In addition, a narrow (and unrealistic) standard of physical beauty is heavily emphasized. These are the models of femininity presented for young girls to study and emulate."

Sexualization has been a subject of debate for academics who work in media and cultural studies. Frederick Attenborough states the term has not been used simply to label what is seen as a social problem, but to indicate the much broader and varied set of ways in which sex has become more visible in media and culture. These include: the widespread discussion of sexual values, practices and identities in the media; the growth of sexual media of all kinds; for example, erotica, slash fiction, sexual self-help books and the many genres of pornography; the emergence of new forms of sexual experience, for example instant message or avatar sex made possible by developments in technology; a public concern with the breakdown of consensus about regulations for defining and dealing with obscenity; the prevalence of scandals, controversies and panics around sex in the media.

According to the Media Education Foundation's documentary Killing Us Softly 4: Advertising's Image of Women, the sexualization of girls in media and the ways women are portrayed in the dominant culture are detrimental to the development of young girls as they are developing their identities and understanding themselves as sexual beings.

The terms "pornification" and "pornographication" have also been used to describe the way that aesthetics that were previously associated with pornography have become part of popular culture, and that mainstream media texts and other cultural practices "citing pornographic styles, gestures and aesthetics" have become more prominent. This process, which Brian McNair has described as a "pornographication of the mainstream". has developed alongside an expansion of the cultural realm of pornography or "pornosphere" which itself has become more accessible to a much wider variety of audiences. According to McNair, both developments can be set in the context of a wider shift towards a "striptease culture" which has disrupted the boundaries between public and private discourse in late modern Western culture, and which is evident more generally in cultural trends which privilege lifestyle, reality, interactivity, self-revelation and public intimacy.

The Australian writers, Catharine Lumby and Kath Albury (2010) have suggested that sexualization is "a debate that has been simmering for almost a decade" and concerns about sex and the media are far from new. Much of the recent writing on sexualization has been the subject of criticism that because of the way that it draws on "one-sided, selective, overly simplifying, generalizing, and negatively toned" evidence and is "saturated in the languages of concern and regulation". In these writings and the widespread press coverage that they have attracted, critics state that the term is often used as "a non-sequitur causing everything from girls flirting with older men to child sex trafficking" They believe that the arguments often ignore feminist work on media, gender and the body and present a very conservative and negative view of sex in which only monogamous heterosexual sexuality is regarded as normal. They say that the arguments tend to neglect any historical understanding of the way sex has been represented and regulated, and they often ignore both theoretical and empirical work on the relationship between sex and media, culture and technology.

The way society shapes ones personal interest is presented in a book review of Girls Gone Skank by Patrice Oppliger, Amanda Mills states that "consequently, girls are socialized to participate in their own abuse by becoming avid consumers of and altering their behavior to reflect sexually exploitative images and goods." The belief that women are powerful and fully capable as men is stated in the text "Uses of the Erotic: The Erotic As Power" by Audre Lorde stating that the suppression of the erotic of women has led them feeling superior to men "the superficially, erotic had been encouraged as a sign of female inferiority on the other hand women have been made to suffer and to feel opposed contemptible and suspect by virtue of its existence".

Children and adolescents spend more time engaging with media than any other age group. This is a time in their life that they are more susceptible to information that they receive. Children are getting sex education from the media, little kids are exposed to sexualized images and more information than ever before in human history but are not able to process the information, they are not developmentally ready to process it, and this impacts their development and behavior.

Sexualization of young girls in the media and infantilization of women creates an environment where it becomes more acceptable to view children as "seductive and sexy". It makes having healthy sexual relationships more difficult for people and creates sexist attitudes.