Spinal cord injury is a serious and disabling injury and has a high incidence. The annual incidence of spinal cord injury worldwide is about 15-40 cases per million. With the development of our transportation and industrial economy, the number of spinal cord injury patients has increased significantly. In addition to causing physical paralysis, spinal cord injury can also lead to other neurological dysfunctions, with neurogenic bladder being one of the most common complications, occurring in the vast majority of spinal cord injury patients. In a study of the U.S. Standard Spinal Cord Injury System, 81% of patients reported some degree of bladder function impairment 1 year after injury. The type of bladder and sphincter dysfunction varies depending on the injured segment and produces a range of urinary complications. Furthermore, renal impairment due to neurogenic bladder is the leading cause of death in patients with spinal cord injury. A study of spinal cord injury patients from the 1976 Tangshan earthquake in China found that spinal cord injury with neurogenic bladder resulted in 49%-66% of deaths from renal failure 15 years after the earthquake. Therefore, spinal cord injury neurogenic bladder not only leads to a serious decline in the quality of life of patients, but also directly affects the lives of patients, which should be given our utmost attention. For the rehabilitation treatment after spinal cord injury, there is a lack of sufficient attention to neurogenic bladder in China. It is not wrong to focus treatment on the recovery of somatic motor function, but the neurogenic bladder should be given the same or even more attention, for the reasons mentioned above. In addition to the importance placed on the treatment of neurogenic bladder in spinal cord injury, colleagues in rehabilitation medicine should also be aware of the principles of treatment and its new ideas and techniques. One important principle is to ensure that bladder pressure is within a safe range during the storage and voiding periods, which is generally considered to be no more than 40 cm of water column, especially during the storage period. This is to ensure that urine does not reflux into the upper urinary tract during storage and voiding, which is one of the major causes of kidney damage and renal failure in patients with spinal cord injury. How do you know what the intravesical pressure is during storage and voiding? It is necessary to introduce the concept of urodynamic testing. The urodynamic testing system provides us with data on intravesical pressure, urinary flow rate, bladder capacity, sphincter condition, and imaging of the bladder during voiding, which is currently the gold standard test for accurately assessing neurogenic bladder and developing the best bladder management plan for patients. During the rehabilitation of neurogenic bladder with urinary retention, we have to pay attention to the fact that we cannot just focus on helping the patient to urinate, but more importantly, we have to see whether the urination and urine storage are safe, whether there is any threat to the upper urinary tract and whether there is any upper urinary tract reflux, otherwise, although the patient urinates, his life is threatened. Therefore, the abdominal pressure voiding, breath-holding voiding including trigger point voiding that we commonly use in rehabilitation may have to draw a question mark. The specific feasibility and safety of these methods in a particular patient depends on whether the pressure in his bladder is in the safe range and whether there is urine reflux. The gold standard test is imaging urodynamics, but what if there is none? You can use the Simple Urodynamic Examination and Training System, which requires only a few simple devices such as a catheter, a feeding tube and a ruler, and can be made and carried out by yourself. In our clinical practice this has proven to be simple and practical, and Professor Wyndaele, editor-in-chief of Spinal Cord magazine, also advocates the use of this simple method in places where conditions are limited. In addition, early detection of upper urinary tract reflux can be achieved by regular ultrasound examination of the bladder and upper urinary tract. If a patient has upper urinary tract dilatation after voiding with abdominal pressure, breath-holding or trigger point voiding, this method of voiding should be abandoned immediately. There is also a relatively new concept concerning the retention of catheterization in the early stages of spinal cord injury. Most hospitals in China still follow the textbook practice of clamping and opening the urinary catheter at regular intervals, mainly to preserve bladder sensory stimulation and to prevent bladder atrophy. However, the new concept is to open the urinary catheter without clamping. The reason is that short-term retention of catheterization in early spinal cord injury will not lead to bladder atrophy, and if the catheter is clamped, there is a risk of urinary reflux during the bladder storage period. Although there are now a variety of treatments for neurogenic bladder in spinal cord injury, the accepted method of choice is intermittent clean catheterization. This has been largely agreed upon in the rehabilitation medicine community, but in other related disciplines, such as orthopedics, this concept needs to be promoted.