A herniated disk is a condition that can occur anywhere along the spine, but most often occurs in the lower back. It is sometimes called a bulging, protruding, or ruptured disk. It is one of the most common causes of lower back pain, as well as leg pain or “sciatica.” …
https://orthoinfo.aaos.org/en/diseases–conditions/herniated-disk-in-the-lower-back/

