Your spine is made up of 33 vertebrae (bones) that are stacked on top of one another. Between each vertebra is a cushion-like piece of cartilage called an “intervertebral disk.” Imagine the disk as a tire, with gelatin filling the hole in the tire. The rubbery outer part is called the “annulus,” and the gelatin is called the “nucleus.” When we’re young, under 30 years of age, the disk is made mostly of gelatin. As we age, we start to lose some of that gelatin. The disk becomes flatter and less flexible, making it easier to injure. In some cases, the gelatin can push out through a crack in the rubbery exterior and lead to a herniation (bulge) or rupture (tear). The type and location of your symptoms depends on the location and the amount of pressure on the nerves:
Your risk for developing a herniated disk increases due to: