Your spine is made up of a stack of individual bones, known as vertebrae, which are separated by spinal discs. These discs are somewhat rubbery in nature and provide your spine with important cushion and shock absorption to protect your spine. While the spinal discs are supposed to be firmly connected to your vertebrae, due to changes in age (disc degeneration), genetic factors or injury, they can move out of place and take on a bulging quality— potentially contributing to a bulging disc, slipped disc, ruptured disc or what is known as a herniated disc. When a herniated disc interferes with or touches nerves or nerve roots, it can be the culprit behind pain in other areas. For example, if the herniated disc is affecting your sciatic nerve, which runs from your lower back, down your buttocks, and into your leg, the results can be pain, numbness or tingling radiating down the leg—potentially even as far as the back of the calf or into the foot.