Back Pain After a Car Accident

By Benjamin McCay, DC, CCSP

Published July 5, 2026

Introduction

Back pain is one of the most common injuries reported after a motor vehicle accident. While many people associate car accidents with neck injuries and whiplash, the forces generated during a collision can also place significant stress on the muscles, ligaments, joints, discs, nerves, and fascia of the spine.

Some people experience back pain immediately after a crash. Others feel relatively normal at first, only to develop stiffness, soreness, or radiating pain hours or days later.

Understanding the causes of post-accident back pain can help you recognize potential injuries and seek appropriate treatment before symptoms become chronic.

Why Does Back Pain Occur After a Car Accident?

Even in relatively low-speed collisions, the body is subjected to rapid acceleration and deceleration forces.

During a crash, the spine may be compressed, twisted, bent, or stretched beyond its normal range of motion. These forces can injure multiple structures throughout the back.

Potential injuries include:

• Muscle strains
• Ligament sprains
• Facet joint injuries
• Sacroiliac (SI) joint injuries
• Fascial restrictions
• Disc injuries
• Nerve irritation

The amount of vehicle damage does not always reflect the severity of injury. Significant back pain can develop even when vehicle damage appears minor.

Common Symptoms of Back Pain After a Collision

Lower Back Pain

The lumbar spine is one of the most frequently injured areas during a motor vehicle accident.

Symptoms may include:

• Aching pain
• Sharp pain
• Pain when standing
• Pain when sitting
• Pain during movement

Mid-Back Pain

The thoracic spine may also become injured during a collision.

Patients often report:

• Pain between the shoulder blades
• Muscle tightness
• Pain with deep breathing
• Stiffness during movement

Muscle Spasms

Muscles frequently tighten after injury in an attempt to protect the affected area.

This may result in:

• Tightness
• Cramping
• Limited movement
• Increased pain with activity

Pain Radiating Into the Leg

Some injuries may irritate nearby nerves.

Symptoms can include:

• Pain into the buttock
• Pain down the leg
• Numbness
• Tingling
• Weakness

These symptoms should be evaluated promptly.

Stiffness and Reduced Mobility

Many patients experience difficulty:

• Bending forward
• Standing upright
• Getting out of bed
• Sitting for extended periods

What Structures Can Be Injured?

Muscles

Muscles are commonly strained during collisions.

These injuries may produce:

• Localized pain
• Tightness
• Tenderness
• Trigger points

Ligaments

Ligaments provide stability to the spine.

Excessive force may overstretch these tissues and create ongoing pain or instability.

Facet Joints

Facet joints are small joints that connect the vertebrae.

These joints are a common source of back pain following motor vehicle accidents.

Sacroiliac Joint Injuries

The sacroiliac joints connect the spine to the pelvis.

Accident-related SI joint injuries can produce:

• Low back pain
• Buttock pain
• Hip pain
• Pain when walking

Fascia

Fascia is the connective tissue network that surrounds muscles, joints, nerves, and organs.

Trauma can create fascial restrictions that contribute to pain, stiffness, and reduced mobility.

Disc Injuries

Intervertebral discs act as shock absorbers between vertebrae.

The force of a collision may contribute to:

• Disc bulges
• Disc herniations
• Annular tears

These injuries may irritate nearby nerves and create radiating symptoms.

Why Does Back Pain Sometimes Appear Days Later?

Many accident victims are surprised when delayed symptoms appear.

Immediately following a collision, the body releases adrenaline and other stress hormones that can temporarily mask pain.

As inflammation develops over the following hours or days, symptoms often become more noticeable.

This delayed onset pattern is common after motor vehicle accidents.

Signs You May Need Further Evaluation

You should seek medical attention if you experience:

• Persistent back pain
• Increasing pain
• Numbness or tingling
• Weakness
• Pain radiating into the leg
• Difficulty walking
• Loss of bladder or bowel control
• Severe pain that does not improve

Early evaluation may help identify injuries before they worsen.

How Is Back Pain Diagnosed?

Diagnosis begins with a thorough history and physical examination.

A healthcare provider may evaluate:

• Range of motion
• Muscle strength
• Reflexes
• Sensory function
• Joint mobility
• Orthopedic findings
• Neurological findings

Additional testing may be recommended when appropriate.

X-Rays

X-rays may identify:

• Fractures
• Alignment abnormalities
• Degenerative changes

MRI

MRI is often used when symptoms suggest:

• Disc injury
• Nerve involvement
• Significant soft tissue injury

CT Scan

CT imaging may be recommended when fractures are suspected.

Treatment for Back Pain After a Car Accident

Treatment depends on the nature and severity of the injury.

Chiropractic Care

Chiropractic treatment may help improve spinal mobility, reduce pain, and restore function after accident-related injuries.

Treatment may include:

• Spinal manipulation
• Joint mobilization
• Soft tissue therapy
• Rehabilitation exercises

Massage Therapy

Massage therapy may help:

• Reduce muscle tension
• Improve circulation
• Decrease stiffness
• Improve mobility

Therapeutic Exercise

Exercise is often one of the most important components of recovery.

Goals may include:

• Improving flexibility
• Increasing strength
• Restoring normal movement
• Preventing chronic pain

Medical Management

Some injuries may require medication, injections, advanced imaging, or specialist referral.

Can Back Pain Become Chronic?

Yes.

Without appropriate treatment, some accident-related injuries can become long-term problems.

Persistent inflammation, reduced mobility, muscle guarding, and altered movement patterns may contribute to chronic pain.

Early diagnosis and treatment may help reduce the risk of ongoing symptoms.

Back Pain Treatment in Everett and Lynnwood

At Advanced Chiropractic & Massage, we evaluate and treat patients experiencing back pain following motor vehicle accidents.

Our goal is to identify the underlying source of pain, improve mobility, reduce inflammation, and help patients return to their normal activities safely and efficiently.

Whether symptoms began immediately after the accident or developed several days later, prompt evaluation can help guide recovery.

Frequently Asked Questions

Is lower back pain common after a car accident?

Yes. Lower back pain is one of the most frequently reported symptoms following a motor vehicle collision.

Can back pain appear several days after an accident?

Yes. Delayed onset symptoms are common because inflammation often develops gradually.

Can a car accident cause a herniated disc?

A motor vehicle collision can contribute to disc injuries, including disc bulges and herniations.

Should I get an MRI for back pain after an accident?

MRI may be appropriate when symptoms suggest nerve involvement, disc injury, or persistent pain that does not improve.

Can chiropractic care help back pain after a car accident?

Many patients benefit from chiropractic treatment as part of a comprehensive recovery plan.