Spinal stenosis occurs when the space within the spinal canal narrows, putting extra pressure on the spinal cord and nerves. This can happen in areas like the neck or lower back, reducing the space for nerves to move freely.This narrowing can lead to discomfort, pain, tingling, numbness, or weakness in the affected area. These sensations may spread from the spine to other parts of the body depending on the location and severity. In some cases, it can affect movement, coordination, or control over certain functions due to nerve pressure.