Traction in physiotherapy is a treatment that applies a gentle, controlled pulling force to the spine to create space between the vertebrae. This pulling force decompresses the spine, which eases pressure on compressed discs and nerves and helps relieve back and neck pain. Traction can be applied by hand or with a traction machine, and it works best as part of a wider physiotherapy plan rather than on its own.

Below we explain what traction is, how it works, and the different types. We also cover the conditions it treats, what it feels like, whether the research shows it works, how it compares with spinal decompression, its benefits, session length, safety, who should avoid it, and whether you can do it at home.

What Is Traction in Physiotherapy?

Traction in physiotherapy is a technique that uses a controlled pulling force along the length of the spine to gently separate the vertebrae and relieve pressure. The vertebrae are the small bones stacked to form your spine, and between each one sits a cushioning disc. When a disc or nerve is compressed, that pressure causes pain, and traction works to reduce it by creating a little more space.

A traction machine in physiotherapy is the device that delivers this pulling force in a measured, repeatable way. The machine uses straps or a harness around the chest and pelvis for the lower back, or a head and chin support for the neck, and then applies a steady or on-and-off pull. Because a machine controls the exact amount and timing of the force, it can be adjusted precisely to your body and your condition.

Traction has been used in physiotherapy and spinal care for many decades. When a chiropractor or physiotherapist “puts you in traction,” they are simply positioning you so that a pulling force can gently stretch the spine and take pressure off the structures causing your pain. This technique fits within the broader hands-on and movement-based care our physiotherapy team draws on, and seeing how it works makes its purpose clearer.

How Does Traction Therapy Work?

Traction therapy works by pulling the vertebrae slightly apart, which lowers the pressure inside and around the spinal discs. Lower pressure on a disc gives a bulging or herniated portion room to draw back, and it eases the squeeze on nearby nerve roots that send pain down the arm or leg. Relieving that nerve pressure is the main way traction reduces pain.

The gentle separation of the vertebrae does more than take pressure off nerves. Decompressing the disc space can help the disc draw in fluid and nutrients, a process that supports healing over time. Traction also stretches tight muscles and joints around the spine, which relaxes spasm and can improve movement, in a way that complements hands-on treatments like massage therapy. These combined effects explain why traction is used for pain that sits deep in the spine rather than on the surface.

Traction is applied to two main regions, and the two work a little differently. Cervical traction uses a gentle force to stretch the neck and ease pressure on the discs and nerves in the upper spine. Lumbar traction targets the lower back and needs a noticeably greater force than cervical traction, because the lower spine carries far more of the body’s weight. Knowing which region is being treated, something a physiotherapy assessment sorts out first, leads naturally to the different ways traction can be applied.

What Are the Types of Traction?

The types of traction fall into two broad groups, manual and mechanical, with a few specialised variations within them. Manual traction is applied by a physiotherapist’s hands, while mechanical traction uses a machine or table to deliver the force. Each type suits a different situation, and a physiotherapist chooses based on your condition and comfort.

• Manual traction: the physiotherapist uses their hands to apply a controlled pull to the spine or joints, adjusting in real time to how you respond. It suits acute cases and early treatment.
• Mechanical traction: a traction table or motorised device applies a steady or on-and-off pull, often combined with heat or vibration, and delivers an exact, repeatable force.
• Auto-traction: you control the pulling force yourself by positioning your body on a special table, which helps prevent overstretching.
• Positional traction: pillows, wedges, or bolsters hold you in a posture that gently stretches a targeted part of the spine, a gentle option often used early in recovery.
• Inversion traction: an inversion table tilts you so gravity stretches the spine. It is not suitable for people with high blood pressure, glaucoma, or heart conditions.

The table below compares the three most common approaches so you can see how they differ.

Type	How It Is Applied	Who Controls the Force	Best Suited For
Manual traction	By the physiotherapist’s hands	The physiotherapist, adjusting in real time	Acute cases and early treatment
Mechanical traction	By a traction table or motorised machine	The machine, set precisely by the therapist	Steady, repeatable pull for the neck or lower back
Inversion traction	By an inversion table using gravity	Gravity, at a set tilt angle	General decompression, if no blood pressure or heart risk

Sources: CB Physiotherapy; Physiotattva; Moon Physical Therapy.

Choosing the right type depends on which part of your spine is affected and how your body handles the force. Manual traction gives the physiotherapist the most control for delicate cases, while a traction machine offers the most precise and consistent pull. Once the method is matched to you, the next question is which conditions traction is meant to help.

What Conditions Does Traction Treat, and Is It Good for a Disc Bulge?

Traction treats spinal conditions where a disc or nerve is compressed, and it is often used for a disc bulge or herniation such as one at the L4 L5 level of the lower back. Is traction good for an L4 L5 disc bulge? Yes, traction can help an L4 L5 disc bulge by decompressing that segment and easing pressure on the nerve root, which is one of the situations where the research is most encouraging. The lower lumbar levels like L4 L5 are among the most common sites of disc problems.

The conditions most commonly treated with traction include:

• Herniated or bulging discs, where decompression gives the disc room to draw back off the nerve.
• Sciatica, where pressure on the sciatic nerve sends pain down the leg.
• Degenerative disc disease, which narrows the disc space over time.
• Spinal stenosis, a narrowing of the spaces in the spine that pinches nerves.
• Pinched nerves and facet joint dysfunction, where nerve roots or small spinal joints are irritated.
• Cervical and lumbar spondylosis, the age-related wear of the neck and lower back.

Does traction work for sciatica? Traction can work for sciatica when the leg pain comes from a compressed nerve root in the lower back, because relieving that compression is exactly what traction does. For nerve-related pain like sciatica, traction is usually one part of a plan that also includes hands-on care and exercise. Knowing what traction treats naturally raises the question of what the treatment actually feels like.

What Does Traction Feel Like?

Traction feels like a gentle, steady stretch or pull along the spine, and most people find it relaxing rather than painful. As the force is applied, you feel the vertebrae lengthen apart and the surrounding muscles ease. Many patients describe a pleasant sense of relief as the pressure comes off the spine.

The sensation is controlled and comfortable because the physiotherapist sets the force to suit you and adjusts it based on your feedback. Some people notice mild soreness afterward, much like the feeling after a good stretch, and this usually settles quickly on its own. If the pull ever feels too strong or sharp, the physiotherapist eases it right away, so you stay comfortable throughout. Since the experience is gentle, the more important question for many people is whether traction genuinely works.

Does Traction Therapy Actually Work, and Why Do Some People Say It Is Not Used Anymore?

Traction therapy does work for the right patients, and the reason some people say it is not used anymore is that the research is mixed and depends heavily on who is being treated. Traction shows the strongest results for a specific group, namely people with a herniated disc and nerve-root pain, and much weaker results when used alone for general back pain. This is why careful assessment matters so much before treatment.

The clinical evidence tells a nuanced story. A 2022 meta-analysis published in the journal Computational and Mathematical Methods in Medicine found that mechanical traction effectively reduces low back and leg pain and improves disability in patients with lumbar disc herniation, and that traction added to standard physiotherapy worked better than standard physiotherapy alone. A 2021 systematic review in the journal Physical Therapy similarly found that mechanical traction reduced pain and disability in the short term for lumbar radiculopathy, the nerve-root pain that often follows a disc problem. Research also suggests traction is most likely to help people with recent nerve-root pain, and that large pulling forces are not required to get a benefit.

The doubts come from broader reviews. Large reviews of traction for general low back pain, including a widely cited Cochrane-style review of 24 trials, concluded that traction is not effective as a standalone treatment for mixed back pain. A 2018 review pointed out that traction studies vary enormously in method, force, and patient type, which may explain the inconsistent findings and why matching the right patient to the right traction protocol is so important. The honest summary is that traction is not a cure-all, but it remains a genuinely useful tool for the specific spinal problems it suits, especially when combined with active care like exercise rehabilitation. This modern, targeted use of traction connects closely to a treatment you may have heard called spinal decompression.

Is Spinal Decompression the Same as Traction?

Spinal decompression is a modern, motorised form of traction, so the two are closely related rather than completely different. Both use a pulling force to create space in the spine and take pressure off discs and nerves. The main difference is that non-surgical spinal decompression uses a computer-controlled table to apply precise, cyclical pulling forces, while traditional traction can be simpler and applied by hand or a basic machine.

The goal of both treatments is the same, which is to decompress the spine and relieve nerve pressure. A 2024 study found that motorised traction and spinal decompression added to conventional treatment worked better than conventional treatment alone for chronic lower back disc problems, much as other add-on modalities like laser therapy can support a core treatment plan. In everyday use, the terms overlap a great deal, and what matters most is not the label but whether the pulling force is applied correctly for your specific condition. Whichever term is used, patients want to know what practical benefits traction can offer.

What Are the Benefits of Traction?

The benefits of traction are pain relief, reduced pressure on nerves, muscle relaxation, and better spinal mobility, all without drugs or surgery. By gently decompressing the spine, traction eases the nerve and disc compression that drives much of back and neck pain. This makes it a helpful, non-invasive option within a broader recovery plan that may also include treatments like acupuncture.

Beyond direct pain relief, traction relaxes the tight muscles that tense up to protect a painful spine, which improves comfort and movement. The decompression can also support disc health by helping the disc draw in fluid, and improved circulation brings nutrients that aid healing. For some people with disc problems, a course of traction combined with exercise and hands-on care can reduce symptoms enough to avoid more invasive steps. Traction also pairs well with other treatments like chiropractic care, manual therapy, and heat. To get these benefits safely, it helps to know how a course of treatment is structured.

How Long Is a Traction Session, and How Many Do You Need?

A traction session usually lasts about 10 to 30 minutes, and most people need a series of sessions spread over several weeks. The exact length and number depend on your condition, how long you have had it, and how you respond. Traction is delivered as a course rather than a single treatment.

A typical traction plan tends to follow this pattern:

1. Assessment first: your physiotherapist confirms traction suits your condition and sets the right position, force, and type for you.
2. Regular sessions: treatment often runs 2 to 3 times per week, with each session lasting roughly 10 to 30 minutes, frequently as part of a longer visit that includes exercise and hands-on care.
3. A course over weeks: a full course commonly spans about 4 to 6 weeks, with acute problems often responding faster than chronic ones.
4. Ongoing review: your physiotherapist tracks your progress and adjusts or stops traction as your symptoms improve.

How long should you do traction for in a single session? You should do traction only for the length of time your physiotherapist recommends, which is typically 10 to 30 minutes, since longer does not mean better and the goal is a comfortable, controlled stretch. Because traction is one piece of a complete plan, our physiotherapists in Markham build it into a wider program rather than relying on it alone. Knowing the schedule leads to the important matter of safety.

Is Traction Safe, and Can It Damage the Spine?

Traction is safe for most people when a trained professional delivers it, and it does not damage the spine when it is applied correctly. The pulling force is gentle and controlled, and it is set to a level matched to your body. Serious problems are rare, and the treatment is designed to relieve pressure on the spine rather than harm it.

Side effects, when they happen, are usually mild and short-lived. The most common ones include temporary muscle spasm, mild soreness in the treated area, and occasional dizziness or headache after neck traction. In rare cases, if the force is too strong or applied incorrectly, traction can briefly aggravate nerve symptoms, which is exactly why it belongs in trained hands rather than being guessed at. Can traction damage the spine? Traction does not damage the spine when performed properly by a qualified practitioner, because the force stays within safe, tested limits and is stopped if you feel worse. Can you do too much traction? Yes, you can do too much traction, and overusing it or setting the force too high can cause soreness or muscle irritation, which is why a professional controls the dose. Since traction is safe for most but not all, it is important to know who should avoid it.

Who Should Avoid Traction?

People who should avoid traction include those with osteoporosis, spinal fractures, bone cancer or tumours, and certain heart or lung conditions. Traction applies a pulling force to the spine, and that force is not safe for fragile bones, unstable injuries, or areas affected by disease. A physiotherapist always screens for these conditions before starting treatment.

Traction is also usually avoided during pregnancy, particularly over the lower back, and in people with uncontrolled high blood pressure, severe arthritis, active infection, or spinal cord conditions. A good candidate for traction, by contrast, is typically someone with a herniated or bulging disc, sciatica, or nerve-root pain who does not have any of these risk factors. Because the safe use of traction depends entirely on matching it to the right person, a careful assessment by a qualified physiotherapist or chiropractor comes first. That same professional guidance matters when people ask about using traction at home.

Can You Do Traction at Home, and How Do You Prepare?

You can do some gentle forms of traction at home, but only with proper guidance from a physiotherapist, because the wrong force or position can make symptoms worse. Home traction devices and over-the-door neck units exist, yet they lack the precise control of a clinic setup. The safest path is to have a professional assess you first and show you exactly what is appropriate.

How do you prepare for traction therapy? You prepare for traction therapy by sharing your full medical history, wearing comfortable clothing, and bringing any scans or reports you have. Let your physiotherapist know about any conditions like osteoporosis, high blood pressure, or pregnancy before you start. It also helps to avoid a heavy meal right before a session and to tell your therapist about your pain levels so they can set the force correctly. With the right preparation and professional oversight, traction becomes a safe and useful part of care for the spinal problems it suits.

Frequently Asked Questions

Can You Do Too Much Traction?

Yes, you can do too much traction, and overdoing it can lead to muscle soreness, spasm, or irritation. This is why the force, session length, and frequency are all controlled by a trained physiotherapist. Sticking to the recommended plan keeps traction both safe and effective.

Is Traction Good for an L4 L5 Disc Bulge?

Traction is good for an L4 L5 disc bulge in many cases, because it decompresses that lower lumbar segment and eases pressure on the nearby nerve root. Disc problems at L4 L5 are among the most common in the lower back. A physiotherapist assesses the bulge first to confirm traction is the right approach for you.

Can I Do Traction Therapy at Home?

You can do some gentle traction at home with home devices, but only after a physiotherapist has assessed you and shown you the correct method. Home units lack the precise force control of clinic equipment, so incorrect use can worsen symptoms. Professional guidance keeps home traction safe.

Does Traction Work for Sciatica?

Traction can work for sciatica when the leg pain is caused by a compressed nerve root in the lower back. By decompressing the spine, traction relieves the pressure driving the sciatic pain. It works best as part of a plan that also includes exercise and hands-on care.

How Long Should You Do Traction For?

You should do traction for about 10 to 30 minutes per session, over a course that often runs 2 to 3 times a week for several weeks. The exact length depends on your condition and response. Your physiotherapist sets and adjusts the timing so the treatment stays comfortable and effective.

Can Traction Damage the Spine?

Traction does not damage the spine when it is applied correctly by a qualified professional, because the pulling force stays gentle and within safe limits. The treatment is designed to relieve spinal pressure, not add to it. Proper assessment and controlled dosing are what keep it safe.

The Bottom Line

Traction in physiotherapy is a gentle, drug-free treatment that uses a controlled pulling force to decompress the spine and take pressure off compressed discs and nerves. It feels like a relaxing stretch, sessions run about 10 to 30 minutes, and the research shows it works best for herniated discs and nerve-root pain, especially when combined with exercise and hands-on care. It is safe for most people, though not for those with certain bone, heart, or spinal conditions, which is why a proper assessment always comes first.

If you are dealing with back pain, neck pain, or a nerve issue like sciatica, traction may be one helpful part of a complete recovery plan built around your needs. The team at KC Rehab will assess your spine, explain your options, and design a plan that treats the root cause, and you can contact us whenever you are ready to start.