Stages of disc prolapse
Nucleus degeneration- Degenerative changes occur in the disc before displacement of the nuclear material
Stage of fibrosis- The residual nucleus pulposus becomes fibrosed. The extruded nucleus pulposus becomes flattened, fibrosed and finally undergoes calcification
Low backache: The onset of backache may be acute or chronic.
Sciatic pain: This is usually associated with low back pain, but may be the sole presenting symptom. The pain radiates to the gluteal region, the back of the thigh and leg. The pattern of radiation depends upon the root compressed