Spinal nerve injury is accompanied by spinal fracture or fracture dislocation, after the injury of quadriplegia (cervical spine), paraplegia (thoracic spine) and cauda equina injury (lumbar spine), which brings great losses and burdens to the family and the society, so the injury should be actively treated to maximize the salvage of the residual function and reduce the complication; the complication will directly affect the patient’s recovery and the long-term results. The main complications after spinal cord nerve injury are as follows: 1, high fever: mainly in cervical spine injury quadriplegia, caused by the imbalance of post-injury thermoregulatory center, physical cooling is the mainstay, supplemented by medication, high fever is difficult to control the patient’s prognosis is poor. 2, bedsores: also known as pressure sores, is due to the loss of neurotrophic innervation of the skin without pain, temperature, touch, pressure sensation caused by prolonged compression, turn over on time (turn over every 2 hours) is the main preventive measures, pressure parts of the gentle massage to help prevent the occurrence of pressure sores. 3.Pneumatitis of fallout: it is caused by the reduction of respiratory motility of lungs after prolonged bed rest and sputum cannot be coughed out, and smokers are more prone to it. Regular turning and back patting and medication are the main preventive and therapeutic measures, and smoking cessation is helpful to reduce the severity of crural pneumonia. 4, urinary tract infection and stones: mainly due to the loss of urinary function of the bladder after spinal cord nerve injury, urinary catheterization is a measure to treat urinary retention, and drinking more water is an effective measure to prevent urinary tract infection and stones. 5, hyponatremia and uremia: the cause is unknown, hyponatremia and uremia can develop separately or together, most of them are directly related to the severity of the cervical spine injury, which is difficult to correct and takes a long time, and can be treated with the aid of oral saline. 6, gastrointestinal bleeding: mostly a reaction to traumatic stress, also known as stress ulcer bleeding (common in cervical spine). Generally, it is manifested as dark brown-like contents in the gastric tube, black stools, and upper gastrointestinal bleeding is more common; upper gastrointestinal bleeding can occasionally cause asphyxiation and death when there is a lot of bleeding. Prohibition of food and drink, insertion of gastric tube and application of acid-control drugs are the basis of treatment. 7, abdominal distension: abdominal distension is due to the decrease or loss of gastrointestinal motility after spinal cord nerve injury, and may also be due to the hemorrhagic irritation reaction of retroperitoneum, foot three li pressure can help relieve abdominal distension. 8.Other rare complications such as diarrhea, constipation, deep vein thrombosis (DVT) of the lower limbs, etc.: the doctor will make appropriate treatment according to the individual situation, please assist in the treatment.