However, the fact that, in 1990, the American College of Rheumatology established criteria of very high sensitivity and specificity for the FM classification, has been decisive for its acceptance and settlement in General. Fibromyalgia (known by the acronym FM) is a form of musculosqueletico, diffuse pain, chronic and benign origin not articulate. It is a chronic and complex condition that is characterized by the combination of several symptoms and mainly by the presence subjective of widespread pain, fatigue, morning stiffness and sleep disorder along with the reproducibility of multi-point painful pressure. As its name suggests, fibromyalgia primarily affects soft tissues of the body. Unlike arthritis, fibromyalgia does not cause pain or swelling of the joints; rather, it produces pain in soft around the joints tissues and whole body. The pain caused by Fibromyalgia usually consists of generalized pain or burning.
On numerous occasions, is described as a pain from head to toe. Since the Fibromyalgia produces few symptoms that can be seen openly, has come to nickname as the ‘invisible disability’. There are different types of classification in this regard of fibromyalgia. It can be classified as regional, primary and secondary. The regional FM, also called localized FM or more often myofascial syndrome: pain is confined to an anatomical area and therefore limited to contiguous points. The primary FM is characterized by pain diffuse and painful points to pressure in multiple locations in the absence of a concomitant or underlying condition which could explain the patient’s muscle-skeletal symptoms and signs. The secondary FM is caused by a defined disease such as active rheumatoid arthritis or hypothyroidism, whose treatment carries with it the improvement of the fibromialgico process. The degree of involvement the possibility of classification is as broad as people suffering from the process, since the intensity is very variable.
Fibromyalgia is an entity of idiopathic-unknown etiology estimated affect 2-4% of the population, with prevalence significantly majority, female, as it is between 85% and 94% of cases occur in women. In recent years also have been described ways in children, which has been associated with the presence of hypermobility joint. Its severity varies from day to day, and may change of place, becoming more severe in those parts of the body that are used most, as it is the case neck, shoulders and feet). In some people, pain may be intense enough to interfere with the ordinary, and daily tasks while in others, it only causes them a mild upset. Also, the exhaustion produced by Fibromyalgia varies from person to person. Ranges from a feeling of a slight tiredness, until the exhaustion of an illness like the flu. Fortunately, the FM is not a condition that disable or affects longevity. Finally, it is a poorly known and worst understood disease.