Lower back pain is one of the most common health complaints in America.
In fact, nearly everyone experiences it at some point.
Sometimes it’s easy to identify the cause.
You lifted something heavy.
You slept in an awkward position.
You overdid it at the gym.
But many people wake up one day and ask:
“Why does my lower back hurt when I didn’t do anything?”
The answer is that lower back pain can come from many different structures, including:
- Muscles
- Joints
- Discs
- Nerves
- Ligaments
- The sacroiliac (SI) joints
Some causes are minor and improve within days.
Others may require medical treatment to prevent chronic pain or nerve damage.
In this guide, we’ll explain:
- The most common causes of lower back pain
- How symptoms can help identify the source
- When back pain is serious
- Warning signs you shouldn’t ignore
- Non-surgical treatment options
Quick Answer: Why Does My Lower Back Hurt?
The most common causes of lower back pain include:
- Muscle strain
- Poor posture
- Herniated discs
- Degenerative disc disease
- Facet joint arthritis
- SI joint dysfunction
- Sciatica
- Spinal stenosis
- Arthritis
- Previous injuries
The exact cause often depends on:
- Where the pain is located
- What makes it worse
- Whether pain travels into the leg
- How long symptoms have lasted
People often notice that certain activities aggravate their symptoms. Understanding why back pain gets worse during daily movements can help identify the underlying condition and guide treatment decisions.
Lower Back Pain Symptom Checker
Your symptoms often provide clues about the underlying cause.
If Your Pain Is Mostly in the Lower Back
Possible causes include:
- Muscle strain
- Facet joint arthritis
- SI joint dysfunction
- Degenerative disc disease
If Pain Travels Into Your Leg
Possible causes include:
- Sciatica
- Herniated disc
- Spinal stenosis
- Nerve compression
If Pain Is Worse When Standing
Possible causes include:
- Facet joint syndrome
- Arthritis
- Spinal stenosis
If Pain Is Worse When Sitting
Possible causes include:
- Herniated disc
- Disc degeneration
- Sciatica
If Pain Is Worse in the Morning
Possible causes include:
- Arthritis
- Facet joint inflammation
- Joint stiffness
If Pain Started After an Accident
Possible causes include:
- Whiplash-related spinal injury
- Herniated disc
- Facet joint injury
- Muscle strain
If you’ve recently been involved in a collision, it’s important to understand the signs of lower back pain after a car accident, since symptoms may not appear immediately.
The 10 Most Common Causes of Lower Back Pain
1. Muscle Strain
The most common cause of sudden lower back pain.
Muscle strains often occur after:
- Lifting
- Twisting
- Exercise
- Yard work
Symptoms
- Aching pain
- Tightness
- Muscle spasms
- Pain with movement
Most improve within several weeks.
2. Herniated Disc
A herniated disc occurs when disc material pushes outward and irritates nearby nerves.
Symptoms
- Back pain
- Sciatica
- Tingling
- Numbness
- Leg pain
Pain is often worse while sitting.
3. Sciatica
Sciatica is nerve pain caused by irritation of the sciatic nerve.
Symptoms
- Pain down the leg
- Burning pain
- Tingling
- Weakness
Many patients mistakenly think they have a leg problem when the source is actually the lower back.
4. Facet Joint Arthritis
Facet joints are small joints in the spine that can develop arthritis.
Symptoms
- Pain while standing
- Pain while walking
- Morning stiffness
- Pain while twisting
This is one of the most commonly overlooked causes of chronic lower back pain.
RELATED: Facet Joint Pain Symptoms
5. SI Joint Dysfunction
The sacroiliac joints connect the spine to the pelvis.
Symptoms
- Pain on one side of the lower back
- Buttock pain
- Hip pain
- Pain climbing stairs
Many patients confuse SI joint pain with sciatica.
6. Degenerative Disc Disease
Spinal discs naturally lose hydration with age.
Symptoms
- Chronic lower back pain
- Stiffness
- Pain while sitting
- Reduced flexibility
Many of these spinal conditions can contribute to chronic lower back pain, especially when symptoms persist for months or keep returning.
7. Spinal Stenosis
Spinal stenosis occurs when spaces around nerves become narrowed.
Symptoms
- Leg pain while walking
- Numbness
- Weakness
- Relief when sitting
This condition becomes more common with age.
8. Arthritis
Arthritis may affect:
- Facet joints
- SI joints
- Other spinal structures
Symptoms
- Stiffness
- Aching pain
- Reduced mobility
9. Auto Accident Injuries
Pain may develop days or weeks after a crash.
Symptoms
- Neck pain
- Back pain
- Joint pain
- Nerve irritation
10. Chronic Pain After Surgery
Persistent pain sometimes develops after spinal procedures.
Common causes include:
- Scar tissue
- Nerve irritation
- Adjacent segment degeneration
LEARN MORE: Chronic Pain After Injury or Surgery: Why Pain Doesn’t Always Go Away
When Is Lower Back Pain Serious?
Most back pain is not dangerous.
However, certain symptoms require immediate medical attention.
Seek Emergency Care If You Have:
- Loss of bladder control
- Loss of bowel control
- Severe leg weakness
- Difficulty walking
- Numbness around the groin area
- Severe trauma-related pain
These symptoms may indicate serious nerve compression.
When Should You See a Pain Specialist?
You should schedule an evaluation if:
- Pain lasts more than a few weeks
- Pain keeps returning
- Leg pain develops
- Numbness or tingling occurs
- Daily activities become difficult
- Sleep is affected
- Conservative treatment isn’t helping
- You want to avoid surgery
Many patients wait months or years before seeking help.
Early diagnosis often leads to more treatment options. If you’re unsure whether your symptoms require expert care, learn more about when to see interventional pain specialists.
How Pain Specialists Diagnose Lower Back Pain
Because multiple structures can cause similar symptoms, diagnosis usually involves:
Medical History
Understanding:
- Symptom patterns
- Injury history
- Activity limitations
Physical Examination
Assessing:
- Strength
- Flexibility
- Nerve function
- Joint mobility
Imaging
When appropriate:
- MRI
- X-rays
- CT scans
May help identify structural problems.
Diagnostic Injections
Sometimes targeted injections help identify the exact source of pain.
Non-Surgical Treatment Options for Lower Back Pain
Many patients improve without surgery.
Treatment may include:
Physical Therapy
Improves:
- Strength
- Mobility
- Flexibility
Epidural Steroid Injections
Commonly used for:
- Herniated discs
- Sciatica
- Nerve irritation
Facet Joint Injections
Used when spinal arthritis is contributing to symptoms.
SI Joint Injections
Helpful for SI joint dysfunction.
Radiofrequency Ablation (RFA)
Often used for:
- Facet joint pain
- SI joint pain
May provide relief lasting months or longer.
Spinal Cord Stimulation
Used for certain chronic pain conditions that haven’t responded to other treatments.
Patients often ask how long they should wait before pursuing advanced therapies. Understanding how long before chronic pain treatment should begin can help prevent long-term complications.
Lower Back Pain Treatment in Lafayette, LA
At Interventional Pain Specialists, we help patients throughout Lafayette and surrounding Louisiana communities identify the true cause of lower back pain and explore non-surgical treatment options.
Our team evaluates:
- Disc-related pain
- Sciatica
- Arthritis
- SI joint dysfunction
- Nerve pain
- Chronic spinal conditions
Treatment plans may include:
- Physical rehabilitation
- Epidural steroid injections
- Joint procedures
- Radiofrequency ablation
- Spinal cord stimulation
Our goal is to help patients reduce pain, improve mobility, and return to normal activities.
Frequently Asked Questions
Why does my lower back hurt when I wake up?
Morning back pain is commonly associated with arthritis, facet joint inflammation, poor sleeping position, or degenerative changes.
Why does my lower back hurt when sitting?
Pain while sitting often suggests disc-related problems such as a herniated disc or degenerative disc disease.
Why does my lower back hurt when walking?
Walking-related pain may be associated with facet arthritis, spinal stenosis, or SI joint dysfunction.
When should I worry about lower back pain?
Seek medical attention if pain lasts several weeks, worsens, radiates into the legs, causes weakness, or affects daily activities.
Can lower back pain go away on its own?
Yes. Many minor strains improve naturally. However, persistent or recurring pain deserves evaluation to identify the underlying cause.
Medical References
- National Institute of Neurological Disorders and Stroke (NINDS)
- American Academy of Orthopaedic Surgeons (AAOS)
- Mayo Clinic – Back Pain
- Cleveland Clinic – Lower Back Pain
- Johns Hopkins Medicine – Back Pain
- National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS)
- American Society of Interventional Pain Physicians (ASIPP)
Disclaimer
This article is for educational purposes only and should not be considered medical advice. Always consult a qualified healthcare professional regarding diagnosis and treatment decisions.
