Trigger Points/Myofascial Pain Syndrome (MPS) refers to pain and presumed inflammation in the body's soft tissues or muscles. Myofascial pain is a chronic, painful condition that affects the fascia (connective tissue that covers the muscles). MPS might involve either a single muscle or a muscle group. In some cases, the area where a person experiences the pain might not be where the myofascial pain generator is located. This syndrome typically occurs after a muscle has been contracted repetitively. This can be caused by repetitive motions used in jobs or hobbies or by stress-related muscle tension. While nearly everyone has experienced muscle tension pain, the discomfort associated with MPS persists or worsens.