The family, as the most fundamental social institution, plays a decisive role in the process of socialization and the social growth of adolescents. However, the expansion of family disorder such as parental conflict, divorce, poverty, violence, and disruptions in emotional relationships can seriously challenge this process. The present study was conducted to qualitatively analyze family disorders and their consequences on the social growth of adolescent girls aged 14 to 18 in Aligudarz. This research adopted a qualitative approach using thematic analysis. Data were collected through semi-structured, in-depth interviews with 12 adolescent girls who had lived experience in disorder families. Participants were selected through purposive and snowball sampling, and data collection continued until theoretical saturation was achieved. After full transcription, the interviews were analyzed according to the stages of thematic analysis, including familiarization with the data, initial coding, identification of subthemes, and development of main themes.The findings led to the identification of three main themes: “parental relationships,” “adolescent–parent relationship,” and “social growth.” The results indicated that high-conflict parental relationships and negative parent–child interactions contribute to weakened social growth, increased rumination, depression, conservatism, and reduced independence among adolescents. Conversely, positive parental interactions and emotionally supportive relationships with adolescents—even within the context of family disorder—can play a protective role in social growth. This study emphasizes the importance of focusing on the quality of family relationships, strengthening psychosocial support systems, and designing school-based interventions to promote adolescents’ social growth.