Whole-body hyperthermia in fibromyalgia: A case series

Background Fibromyalgia (FMS) is a primary chronic pain disorder classified in ICD-11 as widespread pain with multifactorial symptoms including muscle pain, fatigue, sleep disturbances, and psychological issues. Therapy recommendations typically involve a multimodal and interdisciplinary approach, including regular graded exercise. However, participation in active therapies by patients with FMS is often limited due to lower pain thresholds and strong pain experience. Increasing nociceptive thresholds could improve access to movement therapy. In passive whole-body hyperthermia (WBHT), the core body temperature is…