Does Spinal Decompression Help with Lower Back Pain?

Nearly 16 million adults experience chronic low back pain, limiting daily activities and disrupting sleep.

Spinal decompression is often recommended for conditions like herniated discs, sciatica, and degenerative disc disease — but does it actually relieve lower back pain?

The answer depends on the type of decompression and the individual case. Non-surgical spinal decompression (traction therapy) may provide relief for some patients, though clinical evidence remains mixed. Surgical decompression tends to show stronger outcomes when conservative treatments fail, particularly in cases involving nerve compression.

In this guide, we’ll break down how spinal decompression works, what research says about its effectiveness, recovery expectations, and how proper sleep support — including a doctor-recommended mattress — may influence outcomes.

Does Spinal Decompression Help Lower Back Pain?

Spinal decompression can help relieve lower back pain — but its effectiveness depends on the cause of the pain and the type of treatment used.

Non-Surgical Decompression

Non-surgical decompression therapy may reduce pain in patients with:

• Herniated discs

• Bulging discs

• Sciatica

• Degenerative disc disease

However, while many patients report improvement after 4–8 sessions, research results are mixed due to study limitations. Current evidence suggests it may help some individuals, but it is not proven to be superior to other conservative treatments like physical therapy.

Surgical Decompression

Surgical decompression is typically reserved for patients who:

• Have not improved after 3–6 months of conservative care

• Experience progressive nerve weakness

• Have significant nerve compression

Studies show approximately 75% of patients experience significant relief following decompression surgery when appropriately selected.

SEE ALSO: Best Mattress for Sciatica

How Does Spinal Decompression Therapy Work?

Depending on the type of spinal decompression table, patients lie either face down or face up on it. A harness is then strapped around their pelvis and attached to the lower end of the table, near their feet. Based on your specific needs, your doctor will use the computer controlling the traction table to select a decompression setting. Once a setting is selected, the lower table begins to move while the upper half remains stable. This movement stretches your spine in a controlled and intermittent manner.

As your spine stretches, your vertebrae spread apart, and nutrient-rich fluid enters the discs to kickstart the healing process. In some cases, the additional space allows herniated or bulging discs to retract and return to a healthy position within the spine. Spinal decompression therapy is sometimes accompanied by electric stimulation, cold/heat therapy during or after the treatment, and ultrasounds.

Non-surgical spinal decompression is used to treat neck pain, back pain, sciatica, bulging discs, herniated discs, degenerative disc disease, worn spinal joints, and injured spinal nerve roots. However, it may not be useful for the following patients:

• Pregnant women
• Anyone who has undergone multiple back surgeries and found little to no pain relief
• Patients with spinal fractures or tumors
• Anyone with an artificial disc or another spinal implant
• Patients prescribed blood thinner medication
• Patients needing a mattress for osteoporosis
• Anyone with a condition compromising their spine’s integrity

SEE ALSO: Best Mattress Recommended By Chiropractors

Surgical Spinal Decompression

Surgical spinal decompression is used as a last resort for patients who have undergone 3 to 6 months of varying treatment with little to no improvement. The surgery typically consists of a surgeon removing a bony growth or portion of any spinal disc placing excess pressure on a nerve.

Research shows spinal decompression surgery to be highly effective with three out of four patients experiencing significant pain relief following the procedure. However, this surgery only takes place after conservative care has failed or when the patient has a progressive neurologic loss (progressive loss of muscle strength, reflexes, or cauda equina syndrome.

Does Spinal Decompression Therapy Relieve Lower Back Pain?

In 1991, Dr. Allan Dyer invented the VAX-D (vertebral axial decompression) table to revolutionize traction therapy with hopes of relieving anyone suffering from lower back pain. As a fairly new treatment for low back pain, the quick and non-invasive nature of the computerized table has been positioned as a choice for patients.

Today, many medical professionals regularly recommend and conduct spinal decompression therapy. Still, others in the field question if non-surgical spinal decompression is truly preferable to other forms of treatment and pain management.

This is because there seems to be a lack of evidence proving the therapy effective. Many studies suggesting the success of the FDA-approved therapy are criticized for one, or a combination of, the following reasons:

• The study did not have an adequate sample size (number of participants).
• The study did not include a placebo group—a group of participants who do not actually receive treatment.
• The study did not utilize blinding—not telling the participants whether or not they are a part of the placebo group.
• The study did not compare the effectiveness of spinal decompression therapy to other treatment options.

Let’s examine the adequacy and deficiencies of a few of these clinical trials.

Spinal Decompression Therapy Studies

One study consisted of 296 participants experiencing lower back pain. During the study, the patients were administered 24-spinal decompression therapy sessions over a period of 8 weeks. At the end of the 8 weeks, a majority of the patients reported significant pain relief.

This experiment may very well indicate the efficacy of spinal decompression therapy. However, the researchers did not examine a random group of people undergoing a different form of treatment for low back pain nor did it have a control group that did not receive any therapies. Therefore, causal relationships between the outcomes and the intervention cannot be made. This suggests non-surgical spinal decompression is not more effective than other options.

Another study consisting of 778 participants found a 71-percent success rate in lower back pain relief. However, the participants were also administered additional treatment, undefined by the researchers. It goes without saying the additional treatment may have been the reason behind their pain alleviation. The experiment also lacked a placebo group, making it difficult to tell if their knowledge of the therapy affected reported pain relief.

The limitations of these studies do not necessarily indicate non-surgical spinal decompression is ineffective. They simply suggest further research is necessary to establish it as positively efficient to lower back pain relief.

FAQ

Is spinal decompression therapy painful?

Spinal decompression therapy stretches your spine which may feel odd at first, but you should never feel pain during or after your visit. In fact, most patients report feelings of relief and relaxation. Still, incorrect positioning or too much pull may cause discomfort. Therefore, many decompression tables include a safety button patients can press to stop the therapy if necessary.

How can I decompress my spine at home?

If you are experiencing lower back pain for the first time you can try spinal decompression at home. To do so, lie face down at the edge of your bed with only your head and shoulders hanging off. You will want to keep your arms facing down near each side of your body. Next, tuck your chin in toward your neck. If you do not feel a stretch, use the balls of your feet to push more of your upper body off the bed.

If necessary, you can leave only your pelvis and legs supported by the mattress while your waistline upward hangs off. If you choose to do this, place your elbows and forearms on the floor, as if in a plank position, in order to adequately support your body weight. Hold the stretch for no longer than 30 seconds then repeat it three to five times.

Dr. Douglas Krebs of Chicago Spine and Sports recommends another option, “Laying flat on your stomach, place your hands underneath your shoulders as if you were to do a push-up.  From there using only your arms, press your chest up off the table letting your hips sag to the ground.  Repeating this 5-6 times a day.”

How long does it take for spinal decompression to work?

You probably will not feel immediate relief within the first week of therapy. Most chiropractors and therapists report a notable reduction in patient pain after 4 to 8 sessions. However, with each patient comes unique circumstances and different levels of pain, so the time it takes for spinal decompression therapy to work varies.

How should I sleep with lower back pain?

If you have lower back pain, we suggest sleeping on your back with a pillow beneath your knees. This position naturally preserves the neutral position of your spine. If this does not work, you experience the pain chronically, or only at night, we suggest investing in a mattress for back pain.

Most people have a difficult time maintaining proper posture throughout the day, nonetheless while asleep. That’s why a high-quality mattress will maintain it for you. Beds designed to prevent and alleviate back pain often include zoned support—a feature to optimize spinal alignment and prohibit you from settling into pain-causing positions.

When should I be worried about lower back pain?

If your low back pain does not subside after 4 weeks, consider seeking the advice of a medical professional. Here are a few other symptoms warranting a visit to the doctor:

1. Your pain remains the same or worsens, even with rest.
2. You experience tingling near your buttock.
3. The pain extends to your legs.
4. You lose control of your bladder.

How long is recovery after decompression surgery?

Recovery after spinal decompression surgery varies by procedure type and individual factors. Most people can leave the hospital within 1–4 days and begin walking soon after. Low-impact activities and return to work often happen within about 4–8 weeks, but complete healing of spinal tissues and full activity return can take several months. 

During this time of recovery for proper sleep support, you should only use doctor recommended mattress for spinal decompression. Your surgeon will give personalized guidance on pacing exercise and lifting restrictions. 

Do decompression beds work?

Beds or mattresses marketed for spinal decompression can help support spinal alignment and pressure relief when you sleep. A supportive surface like a medium-firm memory foam or orthopedic mattress can help your spine stay neutral, reduce pressure points, and discourage excessive sinking, which may assist overall back comfort. 

However, clinical evidence for mechanical “decompression” beds is limited compared with professional medical treatments. Even if you want to choose a decompression bed, discuss options with your doctor or physical therapist, and always use a doctor’s recommended mattress for spinal decompression.

Conclusion

Spinal decompression can help relieve lower back pain — particularly when nerve compression or disc damage is involved. Surgical decompression shows stronger clinical support in appropriately selected patients, while non-surgical traction therapy may provide relief for some individuals, though evidence remains mixed.

No treatment guarantees results. A comprehensive approach — including medical guidance, physical therapy, proper posture, and supportive sleep surfaces — often produces the best outcomes.

If your lower back pain persists beyond four weeks or worsens, consult a medical professional to determine whether spinal decompression is appropriate for your condition.