What is a risk factor for fibromyalgia?

* Female sex. Fibromyalgia is more common in women than in men.

* Age. Fibromyalgia is most commonly diagnosed in people between the ages of 30 and 50.

* Family history. Fibromyalgia tends to run in families.

* Certain medical conditions. Fibromyalgia is often associated with other medical conditions, such as lupus, rheumatoid arthritis, and depression.

* Trauma. Physical or emotional trauma may trigger fibromyalgia in some people.