Back pain is one of the most common health complaints worldwide, but it isn’t a single condition. It can come from different parts of the spine, muscles or ligaments, appear suddenly or gradually, and vary in intensity from mild aches to disabling pain. Getting the right treatment starts with understanding what kind of back pain you have, what’s causing it, and where it originates.
This guide breaks down the different types of back pain, explains what triggers them, and explores treatment options from simple lifestyle changes and exercises to advanced restorative therapies for people who haven’t found relief elsewhere.
Exploring your options for low back pain? Mainstay Medical’s Low Back Pain Quiz and physician finder are great tools to help get you started.
Understanding the Anatomy of the Back
Your spine is a complex, dynamic structure that supports movement and protects the spinal cord. It’s divided into four main regions:
- Cervical spine: the neck area
- Thoracic spine: the upper and mid-back
- Lumbar spine: the lower back, where pain is most common
- Sacrum and coccyx: the base of the spine and tailbone
Each region contains vertebrae separated by intervertebral discs that act as shock absorbers. Surrounding these bones are muscles, ligaments, and tendons that stabilize and support movement. When any of these structures become strained, inflamed, or damaged, it can cause back pain ranging from mild to severe and debilitating.
How Back Pain is Classified: A Guide to Key Differentiators
Back pain can have many presentations, which is why doctors classify it by many key factors. Understanding how your pain fits into these categories can help you better describe your symptoms and discuss treatment options with your healthcare provider.
1. By Duration
- Acute Back Pain: Lasts a few days to a few weeks. It often starts suddenly, like after lifting something heavy or twisting awkwardly.
- Subacute Back Pain: Lasts about 4 to 12 weeks. It may begin as acute pain that takes longer to heal.
- Chronic Back Pain: Persists for more than 12 weeks and can fluctuate in intensity but occurs most days.
2. By Cause
- Mechanical Pain: The most common form of back pain, this occurs when the spine’s discs, joints, bones, muscles, or ligaments become strained, irritated, injured, or degenerated.
- Neuropathic Pain: Caused by irritation or compression of spinal nerves, as in conditions like sciatica or radiculopathy, which can cause burning, tingling, or shooting sensations down the limbs.
- Inflammatory Pain: This kind of pain has been linked to autoimmune conditions such as ankylosing spondylitis, where chronic inflammation damages spinal joints.
- Other Medical Conditions: Pain that originates outside the spine, such as from kidney stones or endometriosis.
3. By Location
- Upper Back Pain (Cervical & Thoracic): Often related to arthritis or muscle strain.
- Middle Back Pain (Thoracic): May involve the thoracic spine or surrounding muscles.
- Lower Back Pain (Lumbar): The most common area, often associated with degenerative disc disease, arthritis, and muscle strain.
A Closer Look at Back Pain and The Many Causes
Back pain can stem from many different sources within the spine, muscles, or nerves. Understanding the specific type of pain and its origin can help you and your healthcare provider identify what’s happening in your body and what treatments may be most effective.
Lower Back Pain (Lumbar)
Lower back pain is one of the most common types of pain, affecting nearly everyone at some point in their lives. The lumbar spine supports most of your body’s weight and is constantly under strain from movement, posture, and lifting. Pain can arise from muscles, joints, discs, or nerves in this area. Everything from the way you sit to the way you sleep can affect your spine and, over time, contribute to back pain if proper posture and body mechanics are not maintained. “Low back pain can seem simple at first, but it’s often more complicated than people realize because many different conditions can cause similar symptoms,” explains Dr. Daniel J. Pak, double board certified anesthesiology and pain medicine physician. “The key is recognizing the problem early so treatment and rehabilitation can start before things become more chronic or difficult to manage.”
Muscle or Ligament Strain
Strains happen when muscles or ligaments stretch or tear, often from heavy lifting, twisting, or poor posture. This pain usually feels sore or stiff and improves with rest, gentle stretching, and short-term anti-inflammatory treatment.
Herniated or Bulging Discs
The intervertebral discs act as cushions between vertebrae to keep them from putting pressure on nerves. When a disc bulges or ruptures, it can press on nearby nerves, causing localized pain or radiating discomfort. Herniated discs are a common cause of mechanical back pain, though they can also irritate nerves if compression occurs.
Degenerative Disc Disease
Over time as our bodies age, spinal discs lose hydration and elasticity. This type of age-related wear is known as degenerative disc disease, which can lead to stiffness, limited mobility, and chronic low back pain. While common with getting older, maintaining flexibility and core strength can help slow progression.
Lumbar Arthritis
Lumbar arthritis occurs when the joints in the lower spine become inflamed or worn down over time, often due to age-related changes or repetitive stress on the spine. As the cartilage between the small facet joints breaks down, the bones may rub together, leading to stiffness, aching, and reduced mobility in the lower back.
This pain is often worse in the morning, after long periods of sitting, or with activities that involve bending or twisting. In some cases, inflammation or bone spurs may also irritate nearby nerves, causing pain that travels into the hips, buttocks, or legs.
While lumbar arthritis is a common cause of chronic lower back pain, movement, posture support, and physician-recommended treatment can help manage symptoms and improve daily function.
Multifidus Muscle Dysfunction
The multifidus muscles are a group of small, deep muscles that run along the spine and play a critical role in stabilizing each spinal segment during movement. They help maintain proper alignment and provide support needed for controlled, pain-free motion.
Multifidus muscle dysfunction occurs when these muscles become inhibited or fail to activate properly, often following injury or the onset of back pain. This “switching off” response can persist even after the initial injury has healed.
When the multifidus muscles are not functioning as they should, the spine loses a key source of stability. This can lead to ongoing strain on surrounding structures, reduced control during movement, and a cycle of recurring or persistent low back pain.
Spinal Stenosis
Spinal stenosis is a chronic degenerative spine condition that occurs when the spinal canal narrows, putting pressure on the spinal cord or nerve roots. It can cause leg pain, numbness, or weakness that worsens when standing or walking. Symptoms often ease when sitting or leaning forward, as this opens up space in the canal.
Spondylolisthesis
In spondylolisthesis, one vertebra slips forward over another, disrupting spinal alignment and irritating nearby nerves. It can result from injury, arthritis, or congenital weakness. Mild cases may respond to physical therapy and strengthening, but severe cases may need surgical stabilization to correct it and ease the pain.
To learn more about low back pain, take our free quiz to receive your low back pain profile.
Pain from Underlying Medical Conditions
Sometimes, back pain can be attributed to an underlying or preexisting medical condition, something you maybe didn’t even realize you had.
Spinal Compression Fractures from Osteoporosis
With osteoporosis, bones become weak and brittle, increasing the risk of spinal compression fractures. These fractures can cause sudden, severe back pain and often require medical treatment and bone-strengthening therapy. Osteoporosis is especially common in menopausal and post-menopausal women, though it can affect anyone. If you suspect you may be particularly vulnerable to osteoporosis, speak to your healthcare provider about preventive measures to keep your spine healthy and happy long-term.
Inflammatory Arthritis
Conditions such as ankylosing spondylitis cause chronic inflammation in the spinal joints, leading to stiffness and reduced flexibility. For this condition, early diagnosis is key to preventing permanent spinal fusion.
Fibromyalgia
Fibromyalgia causes widespread muscle pain, fatigue, and tenderness. It’s considered a form of neuroplastic pain, where the nervous system becomes overly sensitive to pain signals, making it distinct from neuropathic (nerve) or nociceptive (mechanical) pain. Treatment focuses on improving sleep, reducing stress, and retraining the nervous system’s response to pain.
When Back Pain is Serious: Recognizing Red Flags
Most back pain improves with time and conservative care, but certain symptoms can signal a more serious underlying problem that requires attention. If you experience any of the warning signs below, seek medical attention right away to prevent permanent nerve or spinal damage.
| Symptom Group | Specific Red Flags |
| Cauda Equina Syndrome | Trouble urinating, incontinence, numbness in the inner thighs or groin (“saddle anesthesia”), significant leg weakness |
| Infection | Fever, chills, history of IV drug use or immunosuppression, pain after a recent spinal procedure |
| Cancer | History of cancer, unexplained weight loss, or pain that worsens at night |
| Fracture | Major trauma (e.g., fall, car accident), prolonged steroid use, or osteoporosis |
| Severe Nerve Issue | Progressive weakness, tingling, or loss of sensation in the legs |
Treatments for Back Pain: Navigating Your Path to Relief
Finding lasting relief begins with an accurate diagnosis. The most effective treatment for back pain depends on its type, cause, and severity, and what you are willing to explore as a solution to your pain.
Non-Surgical and Conservative Treatments
While back pain may initially feel like something that requires significant medical intervention, research actually shows only a small percentage of treatments offer consistent relief. This means there is a significant need for customized, tailored approaches to each individual’s pain combining therapy, movement, and lifestyle changes. There is no “one-size-fits-all” care plan, but the right combination of treatments and adjustments can make a huge difference for each individual.
Non-Invasive TENS Therapy
Transcutaneous Electrical Nerve Stimulation, or TENS, is a non-invasive treatment used to help relieve back pain. It uses small electrode pads placed on the skin to send gentle electrical pulses to the painful area.
These pulses create a mild tingling sensation and can help reduce how strongly pain signals are felt. In some cases, they may also encourage the body to release natural pain-relieving chemicals.
TENS therapy is simple and can be adjusted for comfort during use. While it may provide short-term relief for some people, it does not treat the underlying cause of chronic low back pain. Ongoing use is often needed to maintain results.
Physical Therapy and Targeted Exercise
Exercise is among the best tools for chronic low back pain. Physical therapists can design routines specialized to you and your pain to strengthen core stabilizers and restore movement.
- Stabilization exercises: Build support muscles.
- Manipulation/mobilization: Restore flexibility.
- Flexion or extension-based exercises: Tailored to pain type (e.g., flexion for stenosis, extension for disc pain).
Medications
Certain medications can help reduce pain and inflammation but generally do not cure an underlying issue. Some common medications include:
- NSAIDs: Ease acute inflammation.
- Muscle relaxants: Treat underlying muscle spasms.
- Antidepressants: Can help treat depression, anxiety, and sleep disturbances that commonly coexist with chronic pain, and certain antidepressants may also help reduce chronic neuropathic pain symptoms.
Mind-Body Techniques
Sometimes, back pain can be attributed to stress, or other external circumstances that have nothing at all to do with your physical health. Stress management, mindfulness, and cognitive behavioral therapy help retrain how the body processes pain, supporting long-term recovery.
Other Modalities
- Taping and acupuncture can relieve strain and promote healing.
- Spinal manipulative therapy (chiropractic/osteopathy) may ease mechanical pain.
Neuromodulation Therapies
Neuromodulation therapies can help reduce certain types of chronic back pain. These implanted devices do not treat the underlying cause; rather, they use gentle electrical pulses to block pain signals from reaching the brain. These signals interrupt pain messages before they reach the brain, which can significantly reduce back and leg pain—especially nerve‑related pain like burning, tingling, or shooting sensations.
The two most common options are:
- Spinal Cord Stimulation (SCS), an implanted device that sends mild electrical signals to the spinal cord
- Peripheral Nerve Stimulation (PNS), similar implanted device but targeting specific nerves outside the spine that are causing pain.
Interventional and Surgical Procedures
While in many cases, back pain can be resolved with holistic treatment plans or medicines, sometimes more interventional or surgical options need to be explored, especially in cases where the pain is so severe that it limits a person’s quality of life significantly.
Injections
Spinal injections are commonly used to help manage back pain. These treatments deliver medication directly to the affected area of the spine.
Depending on the type of injection, the goal may be to reduce inflammation or temporarily block pain signals. Some injections use steroids to calm irritated tissues, while others act as numbing agents to interrupt pain.
Injections may provide short-term relief for some patients, but the effects are typically temporary and can vary from person to person. Ongoing or repeat treatments are often needed to maintain results.
Radiofrequency Ablation (RFA)
RFA is a minimally invasive procedure that uses heat generated by radiofrequency energy to interrupt pain signals carried by targeted sensory nerves. The procedure does not permanently destroy the nerve, and because nerves can gradually regenerate, pain relief is often temporary. (Learn more about the Pros and Cons of RFA).
Spinal Surgery
Spinal surgery may be considered for patients with chronic low back pain when there is a clear structural problem in the spine. This can include conditions such as spinal stenosis, spondylolisthesis, or degenerative disc disease.
There are several types of surgical procedures, ranging from minimally invasive techniques to more complex operations. Some procedures focus on relieving pressure on nerves, while others are designed to stabilize the spine or repair damaged structures.
While surgery can be appropriate in certain cases, only a small percentage of patients with chronic low back pain have a condition that can be effectively treated this way. These procedures also carry risks, including complications, recovery time, and the possibility that pain may persist after surgery.
When Conventional Treatments Aren’t Enough: Addressing the Root Cause of Back Pain
For many people, back pain continues even after trying multiple treatments. That’s because most traditional therapies for chronic low back pain are palliative—they help manage symptoms but don’t correct the underlying problems that keep the pain going.
In about two-thirds of chronic low back pain cases, the issue is mechanical, often related to dysfunction of the multifidus, a deep stabilizing muscle in the lower back. When this stabilizing muscle becomes inhibited (a process called neural inhibition), the spine loses stability and control, which can lead to ongoing pain.
Multifidus dysfunction is common but often underdiagnosed. Signs of it may show up on an MRI as fatty infiltration in the multifidus muscles. Getting an accurate diagnosis of the true root cause of your chronic back pain is essential for long‑term recovery, not just short‑term relief.
What is ReActiv8 Restorative Neurostimulation?
ReActiv8 is a restorative therapy, not a pain mask. It targets multifidus muscle dysfunction, helping restore natural spinal control rather than blocking pain signals.
With ReActiv8 therapy, a small implanted device delivers painless electrical pulses to the nerves that control the multifidus muscle, causing gentle contractions that retrain the muscle and restore spinal stability. Therapy sessions are fully patient-controlled—the device activates only when the patient starts a session.
Unlike ReActiv8, other palliative interventions are meant to block or disrupt pain signals and may be more appropriate when the underlying cause of low back pain is something other than multifidus muscle dysfunction. Spinal Cord Stimulation (SCS) helps people with nerve-related back pain and pain that radiates down the legs by providing continuous stimulation to manage painful sensations. Transcutaneous Electrical Nerve Stimulation (TENS) units try to block pain signals by sending electrical signals through the skin, which doesn’t reach deep enough to activate the multifidus muscle or restore its function. ReActiv8 works at the neuromuscular level, offering a long-term solution that rebuilds stability from within.
Am I a Candidate for ReActiv8?
ReActiv8 is designed for adults with chronic mechanical low back pain associated with multifidus dysfunction who haven’t found lasting relief from standard care. You may be a good candidate if:
- You have chronic mechanical low back pain lasting more than 12 weeks.
- Physical therapy and medications haven’t provided lasting relief.
- You haven’t had prior instrumented spine surgery and aren’t currently a candidate for one.
- You experience difficulty with normal daily tasks involving movements similar to doing the dishes, brushing your teeth, vacuuming, shaving, bending and/or twisting, etc.
- Your pain is predominantly in your lower back, not mainly in your legs.
If this sounds familiar, it may be time to explore whether restorative neurostimulation could help. Find out if you’re a candidate for ReActiv8.
Conclusion: Finding the Right Path Forward
Understanding your specific type of back pain is the first step toward lasting relief. With the right diagnosis, you and your provider can target the true cause of your pain, not just manage its symptoms.
If you’ve lived with chronic low back pain, don’t lose hope. For indicated patients with multifidus dysfunction, ReActiv8 aims to restore the body’s natural ability to control spine stability, improve function, and decrease pain. Get the full picture of your CLBP and ask your provider to confirm or rule out signs of muscle dysfunction on your MRI to see if ReActiv8 could be the right next step for you.
Disclaimer: This article is for general information purposes only, and does not contain any medical advice, opinion, or recommendations. Before trying any new exercise, physical activity, therapy, or treatment, you should always consult with a physician or other health care professional to ensure that the new activity is appropriate for you.