Definition, causes, and prevalence of chronic low back pain. Over 619 million people worldwide are affected by this common condition.
"My back has been hurting for months." If that sounds like you, you are not alone. Over 600 million people worldwide live with low back pain.
An important note:
Have you been told, or told yourself, that chronic back pain is just "something you have to live with"? Large studies show that chronic low back pain can improve with the right approach. Speaking up about your pain is the first step toward getting better.
What You'll Learn
What "chronic low back pain" means, and how it differs from acute back pain
How common it is, worldwide and in different groups of people
Why low back pain is so difficult to diagnose and treat
What this site covers and how to navigate it
1. Chronic Back Pain — and How Common It Is
What Makes Back Pain "Chronic"?
Low back pain is generally classified into three stages:
Stage
Duration
Characteristics
Acute
0–6 weeks
Sudden onset (e.g., after lifting). Most episodes resolve on their own
Subacute
6 weeks–3 months
Pain persists. How you manage it during this window matters
Chronic
3 months or longer
Pain continues and begins to affect daily life significantly
So low back pain that lasts 3 months or more is called "chronic."
"Chronic" does not mean "permanent." Studies consistently show that the right exercise, treatment, and self-care can bring real improvement.
You Are Not Alone — The Numbers
Worldwide
According to the Global Burden of Disease Study (GBD 2021):
Approximately 619 million people worldwide have low back pain
That number is projected to reach 843 million by 2050
Low back pain is the leading cause of disability globally. It affects more people's daily lives than heart disease or diabetes
In the United States
Low back pain is the most common reason for missed work and doctor visits
About 8% of adults have persistent (chronic) back pain at any given time
Prevalence increases with age and is slightly higher in women
An estimated 80% of adults will experience significant low back pain at some point in their lives
Roughly 1 in 10 people around you is dealing with chronic low back pain right now.
2. Why Is Low Back Pain So Difficult?
Chronic low back pain is hard to diagnose and treat for several reasons.
1. The cause is often unclear
In about 85% of chronic low back pain cases, no single, definitive cause can be identified.
That can be frustrating: "If they can't find what's wrong, why does it hurt?"
The lower back has many structures that can cause pain, including the discs, facet joints, sacroiliac joints, muscles, and nerves. In most cases several of them are involved at the same time, so it is hard to point to one "culprit."
Being told "your MRI shows something abnormal" can be alarming. This fact surprises many people:
Among people in their 80s, 96% have disc degeneration visible on MRI, even when they have no pain at all.
So many MRI "findings" are normal age-related changes and may not be the source of your pain.
3. Mind and body are deeply connected
Pain is not "all in your head." But studies show that stress, anxiety, depression, and poor sleep make pain worse. A vicious cycle can develop: pain leads to inactivity, which leads to deconditioning, which leads to more pain, which leads to more inactivity.
3. There Is Good News
Research on chronic low back pain has made real progress over the past two decades.
Exercise therapy works
A major review of clinical trials found, with high certainty, that exercise therapy is effective for chronic low back pain.
Also:
When exercises were matched to the individual's specific pain pattern, improvements were reported.
This site provides an interactive flowchart to help you identify exercises that may suit your pain type.
When conservative treatment is not enough
When exercise, medication, and psychological approaches do not provide adequate relief, spinal cord stimulation (SCS) may be considered as a treatment option.
SCS carries risks, including infection and lead migration, and does not work for everyone
Multiple clinical trials have reported benefits, though individual results vary
The procedure is reversible: the device can be removed if needed (this requires a medical decision)
SCS is covered by insurance in many countries, including national health insurance in Japan and most private insurance plans in the United States
Disclosure: The author of this site is a spine surgeon who performs SCS procedures. The information presented here aims to be balanced and evidence-based. You are encouraged to seek additional opinions and discuss all options, including doing nothing, with your own healthcare provider.
4. Using This Site, and Summary
How to Use This Site
This site is organized so you can read what is relevant to your situation.