Myelomalacia is a pathological term referring to the softening of the spinal cord. Possible causes of myelomalacia include cervical myelopathy, hemorrhagic infarction, or acute injury, such as that caused by intervertebral disc extrusion.In advanced stages, this disorder causes flaccid paraplegia (impairment of motor function in lower extremities), total areflexia (below normal or absence of reflexes) of the pelvic limbs and anus, loss of deep pain perception caudal (toward the coccyx, or tail) to the site of spinal cord injury, muscular atrophy (wasting away of muscle tissue), depressed mental state, and respiratory difficulty due to intercostal (muscles that run between the ribs) and diaphragmatic paralysis. [Source: Wikipedia ]