Disc herniations are a common source of back and leg pain. They can also occur in the smaller discs in the neck. The intervertebral discs in our spine are composed of a thick outer ring of cartilage (annulus) and an inner gel-like material (nucleus). A disc begins to herniate or rupture when a part of the central nucleus pushes against the outer ring due to wear and tear or a sudden injury.
If the pressure continues, the nuclear gel may push all the way through the outer annulus at an area where it is weaker, towards or into the spinal canal. This can put pressure on nerves and result in pain, numbness, or weakness in one or both legs.
Watch the video below to learn more about lumbar herniated discs.