What is Schmorl Node?
The spine holds vertebrae that are separated by discs that take pressure. Each disc has a centre and a tougher outer layer. I have read that when a Schmorl node happens, disc material moves vertically through the endplate into the body. Unlike a slipped disc a Schmorl node usually does not press on spinal nerves. Schmorl nodes appear often in the back and lower back areas.