As for the question of what are the risks of spinal cord cavitation, spinal cord cavitation mainly affects or damages the peripheral nerves and causes a series of clinical symptoms, such as loss of pain or warmth in one or both ulnar sides of the arms, or part of the cervical thorax, but touch or deep sensation is not affected. Later, as the disease progresses, there may also be a corresponding stage of lower motor neuron damage, mainly manifested as muscle atrophy and weakness. The following stages of the cavity may show cone bundle signs, such as increased muscle tone, hyperactive tendon reflexes or pathological reflexes, and some patients may develop local skin dystrophy, even ulcers that do not heal and incontinence.