Myofascial pain syndrome is a common clinical condition that can occur in a variety of areas, including the neck, shoulder and back, and is a common cause of soft tissue pain and periarticular pain. People with myofascial pain syndrome usually have a history of acute and chronic soft tissue trauma, such as sports enthusiasts, or work in fixed positions for long periods of time, such as white-collar IT workers. Common symptoms include diffuse and continuous localized muscle pain, especially in the pain area with the presence of trigger points, trigger these pressure points will have pain conduction and radiating pain, the pain area is concentrated in the neck, shoulder, upper arm, low back and hip and lower limbs and other muscle groups concentrated. Routine physical exams are often not positive, and X-rays can only detect bony abnormalities but not soft tissue lesions. Myofascial pain can limit joint mobility because the muscles are less active due to pain, and inflammation can lead to soft tissue adhesions that reduce muscle strength. Myofascial pain syndrome may cause different disorders in different areas. In the head, tension headaches and temporomandibular joint pain can occur due to tension in the temporalis and frontalis muscles. Fasciitis of the sternocleidomastoid, mandibular hyoid, and posterior occipital muscle groups in the neck can produce occipital neuralgia, otoneuralgia, or glossopharyngeal neuralgia. Fasciitis of the scapular tibialis muscle in the shoulder can induce pain similar to the symptoms of cervical spondylosis. Supraspinatus tendonitis or biceps fasciitis is a major cause of pain that restricts shoulder motion and even spreads to the arm. Fasciitis of the latissimus dorsi muscle or erector spinae muscle in the lower back can cause lingering pain in the lower back and limited range of motion, and many patients mistakenly believe that they have herniated lumbar discs and even undergo surgical treatments; fasciitis of the gluteal and lower extremity muscle groups can cause compression of the related nerves, resulting in dry pain and radiating pain, the most common of which is sciatica. Therefore, strengthening the understanding of myofascial pain can effectively identify the source of pain, and treat the symptoms in order to get rid of the disease.