This randomized controlled trial evaluates the effectiveness of a Mindfulness-Based Stress Reduction (MBSR) program on premenstrual symptom severity, fear of childbirth, and psychological well-being in women experiencing Premenstrual Syndrome (PMS). PMS is a prevalent condition characterized by emotional, cognitive, and physical symptoms that significantly impair women's daily functioning, stress tolerance, and quality of life. In addition to its somatic and affective burden, PMS is associated with increased anxiety and emotional dysregulation, which may contribute to elevated fear related to pregnancy and childbirth during the preconception period. A total of 126 women aged 18 years and older who met the diagnostic threshold for PMS (Premenstrual Syndrome Scale score ≥ 110) were enrolled between June 2023 and November 2025 and randomly assigned in a 1:1 ratio to either an MBSR intervention group or a control group. The intervention group received an eight-session online MBSR program delivered twice weekly, with each session lasting 40 minutes. The program included mindfulness-based practices such as body scan, breath awareness, emotion-focused mindfulness, and cognitive awareness exercises, supported by structured home practice assignments. The control group received no active intervention during the study period. Primary and secondary outcomes were assessed using validated self-report instruments at baseline and after completion of the 8-week intervention period. Premenstrual symptom severity was measured using the Premenstrual Syndrome Scale (PMSS), fear of childbirth was evaluated with the Childbirth Fear-Prior to Pregnancy Scale (CF-PPS), and psychological well-being was assessed using the Psychological Well-Being Scale (PWBS). The primary objective of the study is to determine whether participation in the MBSR program leads to a greater reduction in premenstrual symptom severity compared to a control condition. Secondary objectives include evaluating the effect of MBSR on reducing fear of childbirth and improving psychological well-being. This study aims to provide evidence for the effectiveness of a non-pharmacological, mindfulness-based intervention in supporting women's mental and reproductive health during the premenstrual period.
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Premenstrual Syndrome Severity
Timeframe: Baseline to 8 weeks