To date, the long-term course of fibromyalgia (FM) generally shows little improvement and many patients have problems managing their private, social and professional lives, if at all. Health workers in various specialties, and even in the same specialty, have differing concepts on etiology, diagnosis and treatment of FM. In its work spanning 2 years, an interdisciplinary working group made up from 10 scientific associations reviewed the literature and developed an S3-level consensus guideline. Various etiopathogenetic concepts converge from the perspective of a biopsychosocial model. A stepwise treatment approach with patient education, endurance training, multi-modal therapy and promotion of significant resources is recommended. Of the psychotherapeutic methods, cognitive behavioural training has proved the most relevant. Only a handful of drug therapies have undergone controlled trials, most however only over a period of a few weeks.