Guide
A slipped disc usually does not need surgery
Quick answer
Most lumbar disc herniations improve without surgery. Follow-up imaging repeatedly shows herniations shrinking on their own over months, and the usual course is severe for days to a fortnight, clearly improving by six weeks and largely settled by twelve. Staying active helps and bed rest makes outcomes worse. Loss of bladder or bowel control is an emergency and needs a hospital, not a clinic.
"Slipped disc" is a misleading phrase — nothing slips. The outer wall of a disc gives way and some of the inner material pushes out, sometimes against a nerve. It hurts a great deal and it sounds structural and permanent. Usually it is neither.
What normally happens
Most lumbar disc herniations settle without an operation. Follow-up imaging studies repeatedly show herniations shrinking on their own over months — the body treats the extruded material as something to clear away, and often the largest herniations resorb the most.
The usual arc is severe for days to a couple of weeks, clearly improving by six weeks, and largely settled by twelve. Leg pain tends to go before back pain, which is the right order and a sign things are moving even when the back still aches.
What helps, and what does not
Staying as active as the pain allows is the single most useful thing. Bed rest was standard advice for decades and has been shown to produce worse outcomes than ordinary movement.
Positions that reduce the leg pain, found by trial rather than prescribed from a textbook — they differ between people and change over the weeks.
Graded loading as symptoms allow, moving from walking and gentle movement towards proper strength work for the trunk and hips.
Not chasing the scan. Repeat imaging rarely changes what should be done, and watching a herniation shrink on film is not what recovery is measured by.
Traction, belts and the first two weeks
The first fortnight is about getting through it without making decisions you will regret.
Painkillers, taken as prescribed and on a schedule rather than when the pain peaks, are what make early movement possible. Movement is the treatment; medication buys the window for it.
Lumbar traction is commonly prescribed and the evidence for it is weak. It is a comfort measure, and a plan built around it is a plan with no active component.
Back belts are the same trade as a cervical collar: short-term confidence, longer-term deconditioning. A week while you are at your worst is fine; a month is not.
Heat, and positions that ease the leg, matter more than most people expect. Finding the two or three positions that quiet the leg down is worth an hour of trial, because it is what lets you sleep.
What should change over the weeks is the proportion: less pain relief, more loading, until by week six you are doing proper strength work for the trunk and hips rather than managing symptoms.
The symptoms that are an emergency
Go to a hospital, not a clinic, for:
- loss of bladder or bowel control, or difficulty passing urine
- numbness around the groin, buttocks or inner thighs
- weakness in both legs, or rapidly worsening weakness in one
These are rare, and they are the reason this list exists rather than something to expect.
When surgery is reasonable
When severe leg pain has not improved after a genuine six to twelve weeks of conservative treatment, or when there is progressive weakness in the leg. Operating early for pain alone tends to produce the same result at one year as waiting does — faster relief, same destination.
How long
Expect twelve weeks to be the honest horizon for the episode, and longer to rebuild what the episode cost you in strength and confidence. The second part is the one people skip, and it is the part that decides whether it happens again.
Medically reviewed by Ruchika Arora, BPT · Last reviewed October 2026
Where this page gives a number, it describes what we see most often. Conditions and recovery vary from person to person, and your own assessment decides what applies to you.