The slow disappearance of numbness after cauda equina injury may be a good thing, indicating that the disease is recovering; however, it may also be a bad thing, suggesting that the condition is worsening. 1. If there is numbness after cauda equina injury, and the numbness gradually disappears after active treatment, and the patient’s urinary and bowel functions as well as lower limb dysfunction also gradually recovered, it means that the patient’s cauda equina injury is gradually recovering. 2. If the numbness slowly disappears after cauda equina injury, it may also be a bad thing, considering that the condition is aggravated. When the cauda equina injury aggravates, the sensory impairment innervated by the lesion may appear, and the numbness is slowly disappearing, which may also be accompanied by incontinence, and the functional movement of the lower limbs is continuously limited, and so on. The cauda equina nerve injury should be timely to the hospital, active treatment, early rehabilitation training to improve the symptoms.