L5-S1 Disc Bulge: Understanding the Most Common Lower Back Injury
The L5-S1 segment sits at the base of the spine, right where the lumbar spine meets the sacrum, and it carries a significant amount of the body's weight during everyday movement. Because of this constant load, it is one of the most frequent sites for disc-related injuries. An L5 S1 disc bulge occurs when the soft cushioning disc between these two vertebrae pushes outward, sometimes pressing on nearby nerve roots and causing pain that radiates into the buttocks and leg. What Causes an L5-S1 Disc Bulge This condition often develops gradually due to repetitive strain, poor posture, or age-related wear of the disc's outer layer. Sudden heavy lifting, twisting motions, or long hours of sitting can also accelerate disc degeneration at this level. Since L5-S1 bears more mechanical stress than almost any other spinal segment, even minor structural weakness here can lead to noticeable symptoms. Common Symptoms to Watch For Lower back pain that worsens with bending or sitting Sharp or ...