Teasing and pressure from family members influences the development of body dissatisfaction. Body dissatisfaction is a common experience for girls and can lead to eating disorders. However, most body image disturbance research to date neglects the possible influence of siblings. In light of this, the present study investigated the associations between sibling negative appearance-based talk, intimacy, and body dissatisfaction. The sample consisted of 113 mostly White, female adolescents, whose ages ranged from 12 to 19 years with a mean age of 14.85 (SD = 1.62). This study first examined direct associations between negative body talk, including appearance related teasing and pressure from siblings, and girls’ body dissatisfaction. Second, indirect effects models with intimacy included were examined. There were significant direct links between appearance related pressure from siblings and body dissatisfaction, and significant indirect effects such that sibling teasing and pressure were associated with sibling intimacy, which was associated with body dissatisfaction. These results indicate that siblings play an important role in the development of girls’ body dissatisfaction.

来自家庭成员的戏弄和压力会影响身体不满的发展。对身体的不满是女孩的普遍经历，并可能导致饮食失调。然而，迄今为止，大多数身体形象干扰研究都忽略了兄弟姐妹的可能影响。有鉴于此，本研究调查了兄弟姐妹基于负面外表的谈话、亲密关系和身体不满之间的关联。样本由 113 名白人女性青少年组成，她们的年龄在 12 至 19 岁之间，平均年龄为 14.85 岁（SD = 1.62)。这项研究首先检验了消极的身体谈话与女孩对身体的不满之间的直接关联，包括与外表有关的戏弄和来自兄弟姐妹的压力。其次，检查了包含亲密关系的间接影响模型。兄弟姐妹的外表相关压力与身体不满之间存在显着的直接联系，而兄弟姐妹的戏弄和压力与兄弟姐妹的亲密度相关，而兄弟姐妹的亲密关系与身体不满相关，则存在显着的间接影响。这些结果表明，兄弟姐妹在女孩身体不满的发展中起着重要作用。