Reliving is an integral part of trauma-focused CBT, a recommended treatment for PTSD with a convincing evidence base supporting its use. However, the literature suggests that clinicians are reluctant to use reliving in therapy. Very few studies have explored clients' experiences of undergoing CBT for PTSD, and it seems none have specifically at reliving. The aim of this study was to explore participants' experiences of undergoing reliving as part of CBT for PTSD and help clinicians understand how clients experience this central element of treatment.