Trigger points should not be confused with tender points, they are not the same. Trigger points are key symptom of Myofascial Pain Syndrome (MPS), a common condition which co-exists in fibromyalgia patients. Tender points, on the other hand, are unique to fibromyalgia and exhibit different characteristics. One key difference between the two is that trigger points are physical abnormalities in the muscle fibers and tender points are not. Hence, trigger points can be observed in scans whereas tender points cannot.
Cause of Fibromyalgia Trigger Points
Fibromyalgia trigger points are often a result of lactic acid buildup in the muscles. Another cause could be a dysfunctional healing response common in fibromyalgia patients. Some medical experts found that the dysfunction of the connective tissues in fibromyalgia is what causes the knots. This condition is also known as the fascia inflammation and can lead to overall sensitization or pain in the body.