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Debra Fulghum Bruce PhDAnswered: The feelings of pain and stiffness in fibromyalgia are very widespread, unlike the usual osteoarthritis, bursitis or tendinitis that is localized to a single area. In fact, if there are not many areas involved, then it does not fit the typical picture of fibromyalgia.
With fibromyalgia, there is no joint swelling, no loss of movement of the joints, and no true muscle weakness as one might experience with other problems. Usually the only abnormal findings are the tender areas over the neck, shoulder blades, lower back, elbows and knees.
Celeste CooperAnswered: Arthritis is an inflammatory condition that mainly affects joints.
Fibromyalgia is NOT an inflammatory condition and is a central nervous system disorder that affects muscle, causing pain.
The presence of myofascial trigger points in FM shortens the muscles involved and may lead one to believe they are having joint pain, when in fact it is the dysfunctional muscle that provides locomotion to the joint.