How common is fibromyalgia? Who is mainly affected?
FM affects as many as 1 in 50 Americans. Most people with FM are women (about 80-90%). However, men and children also can have the disorder. Most people are diagnosed during middle age. FM can occur by itself, but people with certain other diseases, such as rheumatoid arthritis and other types of arthritis, may be more likely to have FM. Individuals who have a close relative with FM are more likely to develop FM.
