Broken spinal nerves can be joined, but recovery is difficult. Spinal nerves broken due to trauma need to be anastomosed under the microscope, although they are connected but the recovery is very slow and may not be able to return to the previous. After the injury, there will be loss of sensation in the limb and motor dysfunction, which requires rehabilitation treatment, such as neuromuscular electrical stimulation, hyperbaric oxygen therapy, and the application of nutritive drugs, such as gangliosides or murine nerve growth factor to promote the recovery of the nerves. If the nerve alignment is difficult, it is difficult to recover from poor healing of the severed end. It may leave sequelae, such as limb sensory dysfunction. Therefore, broken spinal nerves need to be treated in the hospital as soon as possible with nerve anastomosis surgery. The recovery time after surgery is usually about 3 to 6 months, but full recovery is difficult.