Deep fasciitis is a sterile inflammatory reaction of the myofascia of the skeletal muscle, which manifests as localized pain and limitation of movement, and may be related to excessive fatigue, injury by external force, external stimulation and viral factors. Prolonged fatigue will overload the muscles, and muscle overuse may lead to inflammatory reaction of the muscle surface fascia, resulting in fatigue deep fasciitis; muscle trauma will cause muscle fascia to be torn and strained, which will also lead to deep fasciitis; deep fasciitis can also be caused by external stimuli such as catching cold and sleeping in an inappropriate position. In addition, there is another case of infectious deep fasciitis, such as muscle and skin injuries and infections when the fascia will also be infected, that is, infectious deep fasciitis. Deep fasciitis may recur even after the triggering factors are controlled. Therefore, you can reduce the chance of recurrence of fasciitis through localized physical therapy and regular muscle stretching exercises.