Aim: To examine the therapeutic impact of an eight-week Yoga-Based Mindfulness intervention on the severity of Compulsive Sexual Behaviour Disorder (CSBD) and mindfulness traits in an adult diagnosed with CSBD.

Methods: A single-case pre-test–post-test clinical design was employed. One adult participant diagnosed with CSBD underwent a structured eight-week Yoga-Based Mindfulness programme comprising asanas, pranayama, Yoga Nidra, cyclic meditation, and mindfulness reflection. Sessions were conducted five days per week, resulting in a total of 44 sessions of 60 minutes each. Outcome measures included the Compulsive Sexual Behaviour Disorder Scale-19 (CSBD-19) to assess CSBD severity and the Five Facet Mindfulness Questionnaire (FFMQ) to assess mindfulness traits. Pre- and post-intervention scores were analysed using percentage change.

Results: following the intervention, CSBD severity decreased substantially, with the CSBD-19 score showing a 46.15% reduction, indicating a marked decline in compulsive sexual behaviours. Concurrently, mindfulness levels increased by 34.69% on the FFMQ, reflecting improvements in present-moment awareness, attention regulation, and non-judgemental observation of thoughts and emotions. These findings suggest that the yoga-based mindfulness intervention effectively supported both behavioural regulation and cognitive–emotional control.