Small belly pain after cauda equina injury may not be relevant and is not usually caused by cauda equina injury.
Cauda equina injury is typically characterized by a well demarcated sensory deficit, with the upper boundary usually being the groin. Signs and symptoms may be unilateral or asymmetric. Radicular pain and sensory deficits are located in the perineum, femur and calf, and lower motor neuron paralysis may be present in the lower extremities, while sphincter deficits are often not obvious.
The pain in the lower stomach may be the result of other conditions, such as bladder disease, lumbar spine injury, urinary retention, and pubic symphysis fracture.
If small stomach pain occurs after cauda equina injury, patients are advised to consult a specialized hospital to clarify the cause and related treatment.