question: I have been diagnosed with neuropathy in my left leg. I m wondering if it is being caused by a lower back issue. My MRI said L4-L5 midline protrusion with midline annular fissure. Mild stenosis impinge on the ventral thecal sac. Mild facet arthrosis and ligamentum flavum hypertrophy with patent L4 neural foramen. Also, L5-S1 small left paracentral protrusion with left posterolateral annular fissure,mild mass effect on the arthrosis and ligamentum flavum hypertrophy with patent L5 neural foramen. MRI lumbar spine demonstrates mild central stenosis at L$-L5 due to a central protrusion with midline annular and mild facet arthrosis. L%-S1 small left paracentral protrusion with left posterolateral annular fissure. There is mild mass effect on the left S1 nerve root. Can you explain what this means and is it the cause of my pain?