Patients with chronic strain cervicodorsal fasciitis complain of diffuse pain in the neck and back (sometimes including the thoracic back), which is evident at the medial shoulder and cervicothoracic junction, and is characterized by severe pain in the morning, which is relieved after a few minutes or half an hour of activity, but seems to return in the evening due to excessive activity, and improves after rest, similar to hypertrophic spondylitis. So what are the factors that cause diffuse and severe pain in the back of the neck during morning rise? The following will introduce them to you. 1, cold: the most common of all causes. Patients have been sleeping on cold ground, windy places, or staying in a cold area for a long time without enough cold clothing, and the onset of the disease is especially common in late autumn, winter and early spring. Due to cold, especially during sleep, if the neck and shoulders are exposed for a long time or blown by cold wind, it first causes changes in blood circulation in the back of the neck, including vasoconstriction, ischemia, bruising and edema, resulting in local fiber exudation and formation of fibrillitis. For this reason, the onset of the disease is very sensitive to climate change, especially when the seasons change. Of course, there is also a relationship with the high and low atmospheric pressure. 3, chronic injury and poor posture: in addition to the more serious injuries caused by various back of the neck fascia, muscle and other fibrotic changes resulting in peripheral nerve compression symptoms, clinically more common is due to a variety of chronic strain factors, especially when the flexion of the neck position (including high pillow) not only cause the intervertebral space pressure rise, and can cause the soft tissue of the back of the neck high tension state, and gradually appear tiny tear-like injury. This endogenous injury will eventually be due to the increase in fibrous-like tissue, and with its late contraction, resulting in local capillary and peripheral nerve compression and symptoms. This injury is more related to the occupation, mostly seen in the back of the neck in a forward-flexed position workers, such as office workers, cartographers, designers accounting, assembly line operators and textile workers. 4, other factors: including certain viral infections, rheumatism of the metaplasia on the dorsal fascia of the neck, etc.. All indicate that the dorsal cervical fascia can be affected by a variety of factors to appear aseptic inflammatory state. Further etiology remains to be explored in the future.