The feeling of stepping on cotton is mainly caused by spinal cord type cervical spondylosis. It is caused by a herniated cervical disc, hypertrophy of the posterior longitudinal ligament and the yellow ligament, local hyperplasia and calcification, resulting in narrowing of the spinal canal and ischemia due to pressure on the spinal cord tissues, resulting in the normal nerve function being affected and the feeling of stepping on cotton in the lower limbs, also known as the feeling of stepping on cotton, resulting in unstable walking. In this case, surgical treatment should be performed, that is, after anesthesia, sterilization, laying surgical towels, then cutting the skin and subcutaneous tissue to expose the spinal canal, opening the spinal canal to decompress the spinal cord, removing the hyperplastic and degenerative tissue, and removing the herniated disc, so that the spinal cord will no longer be compressed, and the symptoms will be significantly improved.