I just read today about the differentiation of muscle tension, muscle spasm and muscle contracture, which may be closely related to some difficult clinical cases, here are some of my humble opinions. 1, muscle tension and spasm are subject to psychological influence, and cold can concentrate muscle spasm and contracture, the former collects sympathetic influence, the latter by affecting the blood supply aggravate the condition. 2, muscle tension and spasm often change each other, because of fatigue, mood, female menstruation, etc., normal people both; myoclonus because of the long history of disease, or because of diabetes, rheumatism and other internal environmental disorders is difficult to reverse, Xuan hiking people believe that can only be loosened through the silver needle and surgery. 3, acute pain caused by myoclonus often with the removal of pain and gradual relief, while chronic pain often have residual pain, very difficult to resolve, through a long time to review only a few patients can be lifted after a long period of recuperation, most of the pain lingering difficult to heal, it is expected that should be related to the myoclonus 4, most of the contracted muscle contracture microscopy can be seen in the myocyte atrophy, most of them are focal or peripheral muscle bundles, the closer to the site of fibrosis, the more obvious the atrophy. The closer to the fibrosis site, the more obvious the atrophy. Myocyte transverse lines disappeared, the nucleus was crumpled and dissolved, and some of them formed homogeneous structureless material. The fibrous intervals between myocytes and muscle bundles increased, forming fiber bundles, within which many fibroblasts could be seen. The number of intermyocardial vessels was reduced, the wall was thickened, the lumen was small and irregular, some were occluded, and neutrophils and lymphocytes were seen infiltrating the peritubular area. This case is very similar to rheumatoid immune disease, so the attack on myoclonus needs to start from the immune aspect, the treatment also need to draw on immune drugs. 5, Chinese medicine treatment of myoclonus is mainly how to restore the blood circulation of contracted muscles, including acupuncture, traditional Chinese medicine and rehabilitation of physical therapy is the key to how the organic combination of each therapy has its role in parts of the absence of one or the other, so for the difficult, serious injuries and illnesses, the rehabilitation of the later stage of the crucial, and need the efforts of the majority of medical personnel.