The incidence of plaster syndrome is relatively high, mainly due to disease, or trauma, which requires external fixation of plaster or brace for lumbar abdomen and back. Due to the restraint or compression of the cast or brace, some patients may have symptoms of chest and abdomen, such as chest tightness, breathlessness, shortness of breath, difficulty in breathing, and even clinical symptoms such as nausea, vomiting, abdominal pain, abdominal distension, etc. In serious cases, blood circulation disorders, limb ischemia, pressure sores, electrolyte disorders, acid-base balance disorders, etc. This is the cast syndrome. For plaster syndrome, once detected, active treatment is needed, such as early release of restraints, relief of clinical symptoms of the patient, and symptomatic treatment.