The backbone's vertebrae are cushioned by gel-like disks which have been prone to put on and tear from growing old or accidents. A weakened disk may rupture or bulge, putting pressure about the spinal nerve roots. This is known as a herniated disk and might cause intense pain. See a well https://jasperujvhs.activosblog.com/33155560/5-simple-statements-about-hiv-and-lower-back-pain-explained