This study is designed to collect data on precipitating factors, diagnosis, morbidity, therapy, quality of life, and symptom severity, etc. informations in patients with fibromyalgia.

Patients fulfilling 1990 ACR criterion for fibromyalgia will be recruited in Fibromyalgia outpatient service which is belonged to the Department of Rheumatism. Except collecting patients' demographic and social characteristic informations, rheumatologist also carry out a comprehensive evaluation including patient current history, current medication use, and tender point examination for a diagnosis or confirmation of fibromyalgia and treatment recommendations. Patients with fibromyalgia will be asked to fill a set of questionnaires to evaluate their quality of life, symptoms severity, quality of sleep and emotion. The study will be conducted in Beijing, China.

Inclusion Criteria:

• Age 18 years or older.
• Fulfills the American College of Rheumatology (ACR) 1990 classification criteria for Fibromyalgia.

Exclusion Criteria:

• Don't fulfill any classification criterions for Fibromyalgia.

Patients fulfilling 1990 ACR criterion for fibromyalgia be seen in the Fibromyalgia Outpatient Service which belonged to the Department of Rheumatism, Guang'anmen Hospital, Beijing China.