Myofascial pain syndrome: A condition characterized by chronic pain in the muscle tissues, similar to fibromyalgia. MPS is sometimes the aftermath of injury. Pain medication, anti-inflammatory medication, and therapies aimed at relaxing the muscles tissues (such as massage, chiropracty, and some forms of acupuncture) have been reported as beneficial. Abbreviated MPS.
See also fibromyalgia.
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Last Editorial Review: 6/9/2016