In general, rectal pressure is not related to the lumbar spine. There are some disorders that can cause this sensation such as sacral plexopathy (inflammation of the sacral nerves not related to compression or herniated discs) but compression of the lumbar nerves or cord issues are generally unrelated. There is a disorder called arachnoiditis (see website) that can cause this but again, the relationship between arachnoiditis and rectal pressure is not strong.
Dr. Corenman
PLEASE REMEMBER, THIS FORUM IS MEANT TO PROVIDE GENERAL INFORMATION ON SPINE ANATOMY, CONDITIONS AND TREATMENTS. TO GET AN ACCURATE DIAGNOSIS, YOU MUST VISIT A QUALIFIED PROFESSIONAL IN PERSON.
Donald Corenman, MD, DC is a highly-regarded spine surgeon, considered an expert in the area of neck and back pain. Trained as both a Medical Doctor and Doctor of Chiropractic, Dr. Corenman earned academic appointments as Clinical Assistant Professor and Assistant Professor of Orthopaedic Surgery at the University of Colorado Health Sciences Center, and his research on spine surgery and rehabilitation has resulted in the publication of multiple peer-reviewed articles and two books.