Chuna for lumbar disc: ① decompression techniques relieve disc pressure, ② alignment correction reduces nerve compression, ③ surrounding muscle release, ④ posture correction prevents recurrence, ⑤ 70–80% improvement reported in mild-moderate disc cases. Avoid in: acute severe disc with cauda equina syndrome (red flag for surgery). Sessions 1–2x weekly. Insurance covers Chuna up to 20 sessions/year.