Introduction: The association of fibromyalgia (FM) and systemic lupus erythematosus (SLE) have been investigated, with conflicting results regarding the impact of a condition on the other.
Objectives: To determine the frequency of FM in a sample of patients with SLE treated at the Hospital Complex of Sorocaba (CHS) and the impact of FM in SLE activity and quality of life, as well as of SLE in FM.
Material And Methods: Descriptive and correlational study.