Bulging Disc Symptoms: Nerve Compression Signs & When to Act

A bulging disc (disc protrusion) extends beyond its normal boundary but annulus remains intact. May compress nerves or cord.

Common Symptoms by Location

• Cervical: Neck pain, radiculopathy (arm pain, numbness, weakness), myelopathy (gait, hand dexterity, hyperreflexia).
• Thoracic: Mid-back pain, band-like chest/abdominal pain, myelopathy.
• Lumbar: Low back pain, sciatica (leg pain, numbness, weakness), neurogenic claudication.

Red Flags (Urgent)

• Saddle anesthesia, bowel/bladder incontinence/retention (cauda equina syndrome)
• Progressive weakness
• Fever + back pain (infection)
• History of cancer, trauma, immunosuppression

Management

• Conservative: NSAIDs, PT, activity modification, epidural steroid injections.
• Surgery (microdiscectomy) if refractory >6–12 weeks or progressive deficit.

Many bulging discs are asymptomatic. Imaging only if clinical correlation.