Disc displacement is a problem that occurs when the shock absorbent pads between each of your vertebrae shift out of position. Typically, this is due to disc herniation.
A herniated disc is one where the center – a soft, jelly-like substance – bulges or protrudes through a weak spot in the disc’s outer casing. The displaced disc can irritate or compress nerves in your spinal canal that results in back pain, as well as sensations of tingling or prickling, “pins-and-needles,” weakness, and numbness.
If the disc displacement occurs in your neck (cervical spine), these symptoms affect your arms. If you have a bulging disc in your lower back (lumbar spine), you feel the effects in your legs.
Sciatica, a common cause of shooting leg pain, is often due to disc displacement that puts pressure on the sciatic nerve.
