The present study aimed to investigate the effectiveness of multi-dimensional group therapy on obsession symptoms, emotion control, impulse control, and self-compassion in women with obsessive-compulsive symptoms. The research method was a pre-test and post-test quasi-experimental design with experimental and control groups. The statistical population of the present study was all women suffering from obsessive-compulsive disorder who were referred to Talieh Salamat Clinic, Tehran in 2021. The purposeful sampling method was used in the present study due to the lack of easy access. Therefore, 30 participants were selected from among the statistical population using targeted sampling and randomly divided into an experimental group and a control group (each group contains 15 individuals). Yale-Brown Obsessive-compulsive Scale by Goodman et al. (1989), the Self-Compassion Scale by Neff (2003), the emotion regulation scale by Williams and Kamles (1977), and the Barratt Impulsiveness Scale by Barratt et al. (2004) were distributed between the two groups. Then, the obsession treatment intervention was implemented in 30 two-hour sessions in the experimental group. The post-test was then performed. Data were analyzed using SPSS (version 24) and ANCOVA. The results of ANCOVA for self-compassion subscales indicated that a significant difference was observed in the components of self-kindness (P=0.005), self-judgment (P=0.029), and mindfulness (P=0.008) between the groups in pre-test and post-test. Also, there is a significant difference in the subscales of depression (P=0.020) and anxiety (P=0.024) of the emotion control variable, between the groups in the pre-test and post-test. None of the impulsivity subscales showed significant differences between the pre-test and the post-test. The treatment of obsession with multi-dimensional group therapy seems to reduce the symptoms of obsessive-compulsive disorder and its accompanying symptoms. Therefore, researchers and therapists are recommended to use this method for their patients. A significant difference was also observed in the obsession scale between the experimental and control groups in the pre-test and post-test (P<0.001).
