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Colorectal cancer, as a chronic disease, imposes substantial psychological challenges that can adversely affect patients' mental health. The present study aimed to investigate the effectiveness of logotherapy on hope and post-traumatic growth among patients with colorectal cancer.

This study employed a quasi-experimental design with a pretest–posttest control group. The statistical population consisted of all patients diagnosed with colorectal cancer who attended Imam Hossein Hospital between October and December 2024. A total of 30 patients were selected using convenience sampling and were randomly assigned to either the experimental group (n = 15) or the control group (n = 15). The experimental group participated in eight sessions of logotherapy, whereas the control group received no psychological intervention. Data were collected using the Snyder Hope Scale and the Post-Traumatic Growth Inventory (PTGI). Data analysis was performed using one-way analysis of covariance (ANCOVA).