New study reveals how vulvar appearance influences personality judgments among women

The physical appearance of female genitalia can influence how women perceive the personality and sexual history of other women, according to new research. The findings indicate that vulvas conforming to societal ideals are judged more favorably, while natural anatomical variations often attract negative assumptions regarding character and attractiveness. This study was published in the Journal of Psychosexual Health.

The prevalence of female genital cosmetic surgery has increased substantially in recent years. This rise suggests a growing desire among women to achieve an idealized genital appearance. Popular culture and adult media often propagate a specific “prototype” for the vulva. This standard typically features hairlessness, symmetry, and minimal visibility of the inner labia.

Cognitive science suggests that people rely on “prototypes” to categorize the world around them. These mental frameworks help individuals quickly evaluate new information based on what is considered typical or ideal within a group. In the context of the human body, these prototypes are socially constructed and reinforced by community standards.

When an individual’s physical features deviate from the prototype, they may be subject to negative social judgments. The authors of the current study sought to understand how these mental frameworks apply specifically to female genital anatomy.

Previous research has found that people form immediate impressions of men’s personalities based on images of their genitalia. The researchers aimed to determine if a similar process of “zero-acquaintance” judgment occurs among women when viewing female anatomy.

Free daily newsletter

“I wanted to take the design used from that research and provide some more in-depth analysis of how women perceive vulvas to help applied researchers who study rates and predictors of genital enhancement surgeries, like labiaplasty,” said Thomas R. Brooks, an assistant professor of psychology at New Mexico Highlands University. “More generally, I have been captivated by the idea that our bodies communicate things about our inner lives that is picked up on by others around us. So, this study, and the one about penises, was really my first stab at investigating the story our genitals tell.”

The research team recruited 85 female undergraduate students from a university in the southern United States to participate in the study. The average age of the participants was approximately 21 years old. The sample was racially diverse, with the largest groups identifying as African American and White. The participants were asked to complete a perception task involving a series of images.

Participants viewed 24 unique images of vulvas collected from online public forums. These images were categorized based on three specific anatomical traits. The first category was the visibility of the clitoris, divided into visible and non-visible. The second category was the length of the labia minora, classified as non-visible, short, or long. The third category was the style of pubic hair, which included shaved, trimmed, and natural presentations.

After viewing each image, the participants rated the genitalia on perceived prototypicality and attractiveness using a seven-point scale. They also completed a questionnaire assessing the perceived personality traits of the person to whom the vulva belonged. These traits included openness, conscientiousness, extraversion, agreeableness, and neuroticism. Additionally, the participants estimated the person’s sexual behavior, including their level of experience, number of partners, and skill in bed.

The data revealed a strong positive association between perceived prototypicality and attractiveness. Vulvas that aligned with cultural ideals were consistently rated as more attractive. Participants also assumed that women with these “ideal” vulvas possessed more desirable personality traits. This suggests that conformity to anatomical standards is linked to a “halo effect” where physical beauty is equated with good character.

Specific anatomical variations led to distinct social judgments. Images featuring longer labia minora received more negative evaluations compared to those with short or non-visible labia. Participants tended to perceive women with longer labia as less conscientious, less agreeable, and less extraverted. The researchers also found that these individuals were assumed to be “worse in bed” despite being perceived as having had a higher number of sexual partners.

The visibility of the clitoris also altered perceptions in specific ways. Vulvas with a visible clitoris were rated as less attractive and less prototypical than those where the clitoris was not visible. Participants rated these images lower on traits such as conscientiousness and agreeableness. However, the researchers found that women with visible clitorises were assumed to be more sexually active and more open to new experiences.

Grooming habits played a major role in how the women were assessed. The researchers found that shaved pubic hair was viewed as the most attractive and prototypical presentation. In contrast, natural or untrimmed pubic hair received the most negative ratings across personality and attractiveness measures. Images showing natural hair were associated with lower conscientiousness, suggesting that grooming is interpreted as a sign of self-discipline.

Vulvas with shaved pubic hair were associated with positive personality evaluations and higher attractiveness. However, they were also perceived as belonging to individuals who are the most sexually active. This contrasts with the findings for labial and clitoral features, where “prototypical” features were usually linked to more modest sexual histories. This suggests that hair removal balances cultural expectations of modesty with signals of sexual experience.

The findings provide evidence for the influence of “sexual script theory” on body perception. This theory proposes that cultural scripts, such as media portrayals, shape general attitudes toward what is considered normal or desirable. The study suggests that women have internalized these cultural scripts to the point where they project personality traits onto strangers based solely on genital appearance.

“Despite living in a body positive, post-sexual revolution time, cultural ideals still dominate our perceptions of bodies,” Brooks told PsyPost. “Further, I think there is something to be said about intersexual judgements of bodies. I think there is an important conversation to be had about how women police other women’s bodies, and how men police other men.”

But the study, like all research, includes some caveats. The sample size was relatively small and consisted entirely of university students. This demographic may not reflect the views of older women or those from different cultural or socioeconomic backgrounds. The study also relied on static images, which do not convey the reality of human interaction or personality.

“Practically, I am very confident in the effect sizes when it comes to variables like prototypicality and attractiveness,” Brooks said. “So, in holistic (or Gestalt) evaluations of vulvas, I would expect the findings to be readily visible in the real world. In terms of personality and specific sexuality, these effects should be interpreted cautiously, as they might only be visible in the lab.”

The stimuli used in the study only featured Caucasian genitalia. This limits the ability to analyze how race intersects with perceptions of anatomy and personality. Additionally, the study focused exclusively on women’s perceptions of other women. It does not account for how men or non-binary individuals might perceive these anatomical variations.

Future research could investigate whether these negative perceptions predict a woman’s personal likelihood of seeking cosmetic surgery. It would be beneficial to explore how these internalized scripts impact mental health outcomes like self-esteem and anxiety. Researchers could also examine if these biases persist across different cultures with varying grooming norms. Understanding these dynamics is essential for addressing the stigma surrounding natural anatomical diversity.

“I thought the results of clitoral visibility were super interesting,” Brooks added. “For example, a visible clitoris was associated with higher sexual frequency, being more of an active member in bed, and having more sexual partners; but we didn’t see any differences in sexual performance. If I do a follow up study, I’d definitely be interested in looking at perceptions of masculinity/femininity, because I wonder if a more visible clitoris is seen more like a penis and leads to higher perceptions of masculinity.”

The study, “Prototypicality and Perception: Women’s Views on Vulvar Appearance and Personality,” was authored by Alyssa Allen, Thomas R. Brooks, and Stephen Reysen.