When does a herniated disc need surgery, and which symptoms are emergencies?
Many herniated discs improve without surgery. Surgery may be considered for persistent disabling symptoms despite suitable treatment, supported by examination and imaging, or for important neurological weakness. New saddle numbness or bladder dysfunction with back symptoms may be an emergency.
Details
Emergency symptoms
New difficulty starting urination, urinary retention, loss of bladder or bowel control, saddle numbness or rapidly worsening weakness can indicate serious nerve compression. Do not wait for a routine appointment or try exercises first.
Elective decisions
The clinician reviews pain distribution, strength, sensation and effects on work and sleep. A disc bulge on MRI alone does not require surgery. Adapted activity, physiotherapy and suitable medicines may help; the treatment period depends on symptoms and response.
What benefit is expected?
Decompression may help a specific nerve-related pain more predictably than diffuse back pain with several causes. Ask about the goal, realistic benefit and risks, including infection or recurrent herniation. No single success percentage or automatic six-week deadline applies to everyone.
Related reading: What is artificial disc replacement in the neck or lower back, and who is suitable?.