Updated June 09, 2015.

Definition: Fibromyalgia is a condition characterized by body aches, pain, sleep disturbances, fatigue, and anxiety, in combination with specific tender points on the body. The cause is unknown. It is sometimes called a rheumatic syndrome or arthritis-related condition.

Pronunciation: fy-bro-my-al-gea

Also Known As: fibrositis, FMS, fibro, FM, fibromyalgia syndrome

Common Misspellings: fibromylagia, fibromialgia, fibromyalja

Examples: I have tender points associated with fibromyalgia.