The first possibility: secondary constipation: it is very common to see patients with incontinence or changes in the nature of the stool due to spinal lesions, especially in cases of constipation due to compression of the cauda equina nerve by lower lumbar spinal stenosis. You have a clear history of spinal canal calcification compressing the spinal cord and causing lower extremity mobility problems, and it is highly suspected that constipation is also related to this, and such nerve compression damage, if not surgically corrected within a certain period of time, even if you have taken surgical measures to remove the compression, the resulting impact (nerve damage) is often irreversible, such constipation is not easy to treat, requiring oral laxatives, Chinese medicine, colonic irrigation, self-exercise and other comprehensive The effect can be obtained only through the treatment. The second possibility: idiopathic constipation: your current constipation symptoms are very consistent with the characteristics of outlet obstruction type constipation, do not rule out that you have certain anorectal disorders caused by constipation, such as mixed hemorrhoids, pelvic floor muscle spasm, colorectal occupancy, etc., you need to go to a specialist to make a clear diagnosis, in order to develop a suitable treatment plan, most outlet obstruction type constipation can be benefited by surgery and other means. In either case, timely intervention is needed to avoid the condition becoming more and more serious, so it is recommended that you visit a constipation specialist as soon as possible to avoid delays.