Fibromyalgia is a condition characterized by chronic musculoskeletal pain throughout the body. The exact cause is unknown, but it is believed to be the result of an amplification of pain signals. An estimated four million adults in the United States suffer from fibromyalgia. 

Fibromyalgia is often experienced alongside other conditions, such as irritable bowel syndrome, migraines, certain joint disorders, and painful bladder syndrome. It is more common among women and those with a family history may be more at risk of developing fibromyalgia. Patients with other disorders, such as osteoarthritis and lupus may also be more at risk of developing fibromyalgia. 

Symptoms of fibromyalgia include widespread, chronic pain; fatigue, often as a result of pain preventing sleep; and problems concentrating and focusing on mental tasks. Symptoms sometimes begin following surgery, significant psychological stress, physical trauma, or infection.

There is currently no cure for fibromyalgia, but symptoms may be managed with physical therapy and medication. Drug classes commonly used to treat fibromyalgia are neuropathic pain and peripheral neuropathy agents and anticonvulsants, miscellaneous.