It’s good to have muscle tone with a spinal cord injury, but it’s bad to have increased muscle tone as a result of a spinal cord injury. Myotonia is a common sign that refers to the tension of a muscle when it is in a relaxed state and is the basis for maintaining normal body posture. Therefore, having muscle tone is good. Increased muscle tone due to spinal cord injury is mostly a bad thing, and is common in paraplegia such as injuries to the cervical and thoracic medulla. When the spinal cord is injured at a certain level due to violence or other factors, the upward and downward conduction of nerves is blocked, but the lower neurons below the level of injury are intact. It is only because the conduction pathway to the higher neurons has been damaged that the inhibitory effect on the lower neurons is weakened, and the excitatory effect of the lower neurons is increased, causing muscle contraction, which is usually manifested as an increase in muscle tone in the lower limbs. After the occurrence of spinal cord injury, it is recommended to consult a doctor in time and follow the doctor’s instructions.