Do you feel stuck with constant lower back pain? Sharp pain that makes you catch your breath, especially when you try to bend forward or sit down. Shooting pain down your leg that leaves a crawling, irritating tingling feeling in your foot. When you stand, your back looks like a question mark. You try to ‘stretch it out’, but that makes it worse. Whether you call it a disc bulge, herniation, prolapse, or slipped disc, it still hurts!
Even though an injury like this sounds scary, it doesn’t have to be. Did you know that 60-80% of lumbar disc herniation injuries can resolve within six to twelve weeks (3 months) without surgery? And within one year, 80-90% resolve completely.
Get familiar with the anatomy of your lower back
Bones / Spine
Your lower back, called the lumbar spine, is made up of five bones called vertebrae. These bones stack on top of each other to form the lower part of your spine, creating a strong foundation to carry the weight of your upper body.
Discs
Between each set of vertebrae, you’ll find an intervertebral disc. Each disc has a tough outer layer (annulus fibrosus), mostly made up of collagen tissue, which is known for its ability to handle tensile (stretch) forces. The inside is a softer, gel-like center (nucleus pulposus) that consists mostly of water and proteoglycans (a type of protein). The proteins bind with water, which allows the central part of the disc to withstand compression. Discs have a poor blood supply, but they receive their nutrients from the bone/vertebra above and below it, through something we call the end plate.
Ligaments
Strong bands of tissue called ligaments hold your spine together. These run along the front, back, and sides of the vertebrae, helping to stabilize the spine and limit excessive movement.
Nerves
Your spinal cord runs down the middle of the spine, and spinal nerves branch out between each pair of vertebrae. In your lower back, these nerves travel down into your hips, legs, and feet. Nerves give us the ability to feel different sensations (like pressure, soft touch, heat, cold, or pain) and give our muscles the ability to move.
Muscles
The lower back is supported by several layers of muscles, including the deep core stabilizers, the larger back extensors, and muscles that connect your spine to your hips and pelvis. These muscles help with posture, movement, and spinal stability with your daily movements.
So, what changes when I have a disc injury?
The unique structure of the lumbar discs in your spine gives them the ability to be both strong and flexible.
- When you bend or twist your body, the discs adapt and absorb the pressure, acting like shock absorbers between the bones of your spine.
- Discs allow comfortable movement of the lumbar vertebrae. This gives you the ability to bend forward and touch your toes or turn around to reach for something on the backseat of your car.
- They help to maintain space between vertebrae, so spinal nerves can exit safely.
- Lumbar discs help to distribute the pressure and weight of your upper body evenly across your spine.
- Together with muscles, discs support the upright posture of your spine.
When a lumbar disc is injured, you lose the effortless and pain-free stability of your lower back. Suddenly, it becomes hard to sit or stand upright for too long. But, at the same time, it also becomes difficult to bend forward, turn around in bed at night, or get up from a chair. Muscle spasms in your back and core decrease the control you have over day-to-day movements.
I have a herniated disc in my lower back. How did it happen?
It usually begins quietly, with small things adding up over time. Maybe you spend a lot of time sitting, or you lift and twist regularly at work. At first, your discs cope just fine — they’re built to absorb shock and allow movement. But slowly, day after day, the load adds up…
Each time you bend forward, sit slouched, or lift something heavy with poor technique, pressure builds inside your spinal discs — especially in your lower back. This pressure isn’t dangerous at first, but when it happens repeatedly, it starts to take a toll.
The disc has a tough outer shell (called the annulus), but with enough repetition or strain, tiny cracks can begin to form. This part of the disc starts to fray, just like the fabric on an old seat cushion that’s been used for years. Inside each disc is a soft, jelly-like center (the nucleus). When the outer layer weakens, this gel starts to move toward the damaged area. It follows the path of least resistance—slowly pressing against the thinning or torn parts of the disc wall. At this point, one of two things can happen. The inner gel might start to press outward, stretching the disc wall and creating a bulge—a bit like when the side of a balloon starts to puff out. If the outer layer gives way completely, the gel can escape through the tear. That’s called a herniation, and it’s a more serious version of the same process.
As the disc changes shape, your body recognises this as an injury. It responds with inflammation — a natural process that sends blood flow, chemical messengers, and immune cells to the area. While inflammation is part of healing, it also sensitizes nearby nerves. Even if the disc doesn’t physically press on a nerve, the inflammatory chemicals alone can cause pain, burning, tingling, or aching. This is often why symptoms flare up, even when nothing dramatic seems to have happened. If the disc bulge or herniation is large enough, it may start to compress a nerve directly. This adds mechanical pressure on top of the chemical irritation, leading to more intense symptoms. You might feel pain travelling down your leg or arm, or even experience numbness or weakness if the nerve’s ability to send signals is disrupted.
Causes of lumbar disc herniation
- Poor posture over long periods, especially while sitting.
- Repetitive movements that strain your lower back (like bending and twisting).
- Picking up or pushing something much heavier than your body is used to.
- Weakened control of your core muscles adds strain to your spine and discs.
- Age-related changes (degeneration) lead to decreased height and flexibility of your discs.
- Exposure to vibration (like driving a car) for long or repetitive periods of time.
- Repetitive coughing or sneezing that increases abdominal pressure and pressure on discs.
How severe is my herniated disc?
Intensity of the Pain
With a disc bulge, pain is often intermittent. It comes and goes according to changes in your posture and the movements that you do. Flare-ups in inflammation cause sharp or catching pain that refers down your buttock or leg. When the pain is bad, you need more medication to manage the pain. Inflammation typically worsens the pain at night and leads to severe stiffness in the morning when you get up.
Limitations in Movement
A disc bulge causes pain, stiffness, or a feeling of being stuck in specific directions. Sitting down, bending forward, or getting in and out of a car are severely painful. These types of actions put more pressure on an already swollen disc, and that increases your pain.
Nerve irritation
We assess how easily the spinal nerves from your lower spine become irritated during certain movements or positions. A bulging disc often causes nerve symptoms, like tingling, crawling, burning, or numbness, that appear only when the nerve is compressed (e.g., slouching, lifting, prolonged sitting). Nerve pain can take a while to catch up with you and, in severe cases, make your leg feel more sore than your back.
Reflexes, sensation, and muscle weakness
Nerves control our ability to experience different sensations, like pressure, soft touch, pain, or heat. They also give our muscles the ability to move and contract. When a disc bulge puts pressure on close by nerve tissue, it disturbs the nerve’s ability to send and receive these signals. So, it causes abnormal sensations, like crawling, burning, and electric tingling. Or disturbs the control of the muscles in your legs, causing weakness or cramps.
Diagnosis
Physiotherapy diagnosis
Our physiotherapists are highly trained to recognize and assess disc injuries. We don’t just look at your pain, but take a comprehensive approach to get to the root of the problem. Starting with carefully listening to your history and understanding how your symptoms affect your daily life. Then, we stress and test your spinal and hip mobility, muscle strength, and nerve integrity and mobility. We understand the physiological stages of healing you’ll go through. That is why we can guide you through a structured program to recover faster and safely return to the things you love doing. Our physiotherapists are the best at diagnosing this type of problem.
X-rays
Intervertebral discs cannot be seen on an X-ray, but the disc spaces can be visualized between the vertebrae. Therefore, an X-ray may not be able to detect a disc bulge, but it can provide information about the bone and joint structure, as well as signs of degeneration.
It won’t be necessary to get an X-ray immediately; your physiotherapist can refer you.
Diagnostic ultrasound
Diagnostic ultrasound can be used to visualize soft tissue. That includes muscles, ligaments, nerves, tendons, and fluid. However, a sonar is not the right type of scan to image a lumbar disc as it cannot reach into the spinal joints. This is not a typical scan used to diagnose a disc bulge in your lower back.
If you need an ultrasound, your physio will refer you.
MRI
An MRI scan can image all of the structures in your lower back, including soft tissue, discs, nerves, and bones. However, it is an expensive test, and you need a specialist doctor referral. Your physiotherapist can guide you to the right specialist doctor if necessary. You do not need to get an MRI from the start.
Why is the pain not going away?
Pain caused by a disc bulge often comes and goes. The intensity also alternates between back stiffness every now and then, and some days where you avoid bending as much as you can.
This cycle gives the impression that your back problem isn’t serious and will eventually disappear on its own. When the disc bulge isn’t managed, it irritates the surrounding tissues and will create flare-ups of inflammation. Movements or postures that keep putting pressure on the disc trigger repeated episodes of pain, stiffness, or nerve irritation.
Without treatment, the disc doesn’t always get the right conditions to heal. Instead, the cycle of “better for a while, then worse again” continues for months.
Problems we see with a lumbar disc herniation
- Use of medication
Many people rely on painkillers or anti-inflammatories but don’t use them consistently or at the correct dosage. This can mean the inflammation never properly settles, and the cycle of flare-ups continues. - Stretching
It’s common for patients to try and “stretch the pain away.” Unfortunately, with a disc bulge, excessive or incorrect stretching can actually irritate the disc and surrounding tissues further, while doing little to build the strength that’s truly needed for recovery. - Rest
Some patients push through the pain and never give the disc a chance to calm down, while others do the opposite — too much bed rest. Neither extreme helps; the key is a balance of rest with guided movement. - Use of crutches
In milder disc injuries like bulges, we sometimes see patients walking with crutches for longer than needed. This can reduce confidence in walking normally and lead to weakness in the supporting muscles. - Surgery mindset
Believing that surgery is the only solution can hold back progress. Most disc bulges recover fully with structured physiotherapy, without the need for surgical intervention. - Walking with nerve symptoms too long
Even if symptoms are mild, ignoring tingling, numbness, or shooting pain in the leg for too long can make recovery slower and less complete. Early intervention gives the nerve the best chance to recover fully. - Not finishing treatment
A very common issue is patients who start physiotherapy or exercise programs but stop once the pain improves. Because disc bulges can flare up and calm down, it’s easy to think the problem has “gone away.” Without completing the full program, however, the spine is left vulnerable to repeat episodes.
Physiotherapy treatment
Our priority is to determine the extent of disc injury and the way it affects the surrounding muscles and nerves. We test the structures surrounding your hip and lower back to clear the nerve pathway and resolve the sciatic nerve pain. Avoiding disc and nerve compression is crucial to restore normal movement of the spinal joints. We protect the surrounding muscles from overworking by addressing compensation patterns and retraining the correct firing pattern. This supports your body in its ability to adapt and heal.
Phases of rehabilitation
1st Phase: Control inflammation, pain and muscle spasm
Our first aim is to get the proper diagnosis and identify and prioritize any contributing factors to your unique problem. Now, we can guide you in avoiding any aggravating activities for the time being and managing your symptoms. This includes a list of things that are safe to do and some that are not.
2nd Phase: Restore mobility to spinal movement
3rd Phase: Core strength and postural changes
4th Phase: Improve the disc’s ability to take weight/compression
5th Phase: Return to normal life
6th Phase: Return to exercise and sport
Healing time
The intervertebral disc has poor blood supply, compared to muscles, because only the outer third has small blood vessels (capillaries). Nutrients and oxygen rich blood is limited, so the disc needs a considerable amount of time to heal, even after the pain has subsided. Approximate time to heal is between 3 to 6 months.
With a non-surgical approach, you should feel an in 3–4 weeks, but full recovery takes several months. In some cases, nerve symptoms such as tingling or mild weakness may take even longer to resolve, since nerves heal more slowly than muscles or ligaments. The important thing to remember is that steady progress is still progress. By sticking with a structured physiotherapy program, most people can avoid surgery and return to their normal activities with confidence and stability.
A full recovery and return to sport will take longer and should not be confused with the healing period.
Other forms of treatment
- General practitioner: Assists with pain management in the form of a prescription for medication or an injection for pain if needed.
- Orthotist: An orthotist can measure and provide a lumbar support brace to help with managing your pain in the early phases of your recovery.
- Biokineticist: As your pain improves, it is important to work on muscle strength and conditioning. Especially if you want to return to playing a sport or to training at the gym. This is where a biokineticist can help and often work in conjunction with physiotherapy treatment.
Is surgery an option?
- Persistent, disabling pain that does not improve with non-operative treatment. This includes physiotherapy, rehabilitation, medication, and corticosteroid injections/infiltrations.
- If the pain lasts longer than 6 weeks without any change or improvement.
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Significant muscle weakness and atrophy of one or both of your legs.
- Cauda equina syndrome.
Take into account that surgery is only the halfway mark for a successful recovery. After surgery, you need to rest, reintegrate, strengthen, and adapt your body to the change.
What else could it be?
- Disc herniation: A step worse than a disc bulge. Now, the disc has swelled and pushed through a tear in the annulus fibrosus into the spinal canal.
- Degenerative disc disease: Degeneration of the lumbar vertebrae and joints leads to more disc compression, smaller joint spaces, and increased nerve compression.
- Sciatica: Compression on the sciatic nerve that causes a combination of pins and needles, numbness, or weakness in the back of your leg and foot.
- Spondylolisthesis: One vertebra slides forward on the one beneath it. This creates extra tension and instability in that spinal joint.
Also known as
- Lower back slipped disc
- Herniated disc in the lower back
- Lumbar discogenic pain
- Prolapsed disc in the lower back
