Myofascial pain is one of the most overlooked and ignored sources of acute and chronic pain, and at the same time, constitutes one of the most common causes of musculoskeletal pain. Myofascial pain is characterized by the presence of myofascial trigger points (TrPs).
The activation of a trigger points may result from different factors, for example, acute or sustained overload, repetitive muscle overuse, stress or other medical causes. Muscle pain is commonly a primary dysfunction and is not necessarily secondary to other diagnoses.
Trigger points may occur in the absence of other medical conditions or co exist with conditions like osteoarthritis and whiplash injuries.