The purpose of this study was to compare social anxiety, positive and negative perfectionism, and quality of life between girls with body dissatisfaction and those without. This research followed a causal-comparative design. The statistical population included all girls aged 17 - 35 years who visited beauty clinics in District 6 of Tehran, as well as girls from the general population in the same district. A convenience sampling method was employed, resulting in a total sample of 120 participants (60 girls with body dissatisfaction and 60 without). Participants completed the Social Physique Anxiety Scale (
Hart et al., 1989), the Positive and Negative Perfectionism Scale (
Terry-Short et al., 1995), and the World Health Organization Quality of Life-BREF (1996). Given the assumptions of parametric tests, multivariate analysis of variance (MANOVA) was used for data analysis. The results were as follows: social anxiety (F = 2.9,
p = 0.9), positive perfectionism (F = 14.9,
p = 0.022), negative perfectionism (F = 4.8,
p = 0.03), and quality of life (F = 11.7,
p = 0.01).The findings revealed significant differences between the two groups in terms of positive perfectionism, negative perfectionism, and quality of life, with
p-values below the 0.05 threshold. However, no significant difference was observed in social anxiety scores.