Muscle atrophy is only a clinical manifestation, not a diagnosis of a disease, or it is caused by other diseases. Therefore, the specific treatment method should be based on the specific characteristics of the underlying disease. If muscle atrophy is simply caused by long-term inactivity of the fracture, functional rehabilitation exercise is allowed under the condition of regular reexamination of the fracture. The problem of muscle atrophy can be gradually recovered by doing functional rehabilitation exercise in all directions of adjacent joints step by step. If there is a long-term nerve injury, such as cervical spondylosis or lumbar disc herniation, nerve compression, and muscle atrophy can also be caused, and during the treatment process, the root cause of nerve compression must be removed, and the compression must be resolved through surgery. Then the functional rehabilitation exercise of these joints in the above operation can slowly restore muscle atrophy. In addition, it can be combined with acupuncture, massage and physiotherapy to achieve good therapeutic effect.