Is schmorls nodes cancer?

No: Schmorl's nodes are protrusions of the cartilage of the intervertebral disc through the vertebral body endplate and into the adjacent vertebra. They are common, especially with minor degeneration of the aging spine, are detectable via x-ray as spine abnormalities. They are most common in the middle and lower spine. They usually cause no symptoms, but they reflect that 'wear and tear.

No: A schmorl's node is basically a weakness in the endplate of a vertebra through which disc material is displaced into the vertebral body. The term "node" is misleading and has nothing to do with cancer. Schmorl's nodes are very common, usually asymptomatic but can be a source of pain if they are acute.