The following factors increase your risk of developing fibromyalgia:

• Sex: Fibromyalgia is at least 5 times more common in women than in men.
• Age: Fibromyalgia tends to develop during early and middle adulthood, although it may not be diagnosed right away.
• Sleep disturbances: While sleeping pattern disturbances are thought to be a symptom of fibromyalgia, they may actually be associated with its development. People with restless legs syndrome or sleep apnea can also develop fibromyalgia.
• Family history: If a family member has fibromyalgia, you are at increased risk of developing the condition.
• Other rheumatic disease: If you have another rheumatic disease (a disease of the muscles and connective tissues), such as rheumatoid arthritis, lupus, or ankylosing spondylitis, you may also be more likely to have fibromyalgia.