Can a Car Accident Cause Fibromyalgia?

A car accident can leave an injured person with more than broken bones, bruises, or whiplash. For some people, the physical trauma of a collision is followed by widespread pain, persistent fatigue, sleep disturbances, and difficulty concentrating that continue long after the initial injuries have healed. In certain cases, these symptoms may lead to a diagnosis of fibromyalgia, a chronic condition that can significantly affect a person’s ability to work, exercise, sleep, and enjoy everyday activities.

Can a car accident cause fibromyalgia? The answer is that a motor vehicle collision may trigger the onset of fibromyalgia in some people, but the medical evidence is complex, and not every person who develops chronic pain after a crash has fibromyalgia. Researchers continue to investigate the relationship between physical trauma, nervous system function, and chronic widespread pain. The Centers for Disease Control and Prevention (CDC) identifies accidents and injuries among the potential triggers or risk factors associated with fibromyalgia.

For people injured in Illinois car accidents, understanding this relationship is important for both medical treatment and personal injury claims. When fibromyalgia develops or worsens after a collision, documenting the symptoms, establishing the medical connection, and demonstrating the long-term impact of the condition can be essential to pursuing fair compensation.

As Naperville car accident attorney John J. Malm explains: “A serious injury is measured by more than what appears on an X-ray. When an accident changes how someone feels, functions, works, and lives each day, those consequences deserve careful attention and a thorough evaluation.”

What Is Fibromyalgia?

Fibromyalgia is a chronic condition characterized by widespread musculoskeletal pain, fatigue, sleep problems, and other physical and cognitive symptoms. Unlike an obvious fracture or torn ligament, fibromyalgia may not produce a single identifiable injury on an X-ray or MRI. Instead, it involves changes in how the nervous system processes pain and other sensory information.

According to the CDC, fibromyalgia affects millions of people in the United States and can substantially reduce quality of life. The condition can occur at different ages, although it is most common in adults. Fibromyalgia may cause symptoms that interfere with nearly every aspect of daily life, including:

Widespread pain: Aching, burning, tenderness, or stiffness affecting multiple areas of the body.
Chronic fatigue: Feeling exhausted even after getting what should be an adequate amount of sleep.
Sleep disturbances: Difficulty falling asleep, waking frequently, or feeling unrefreshed in the morning.
Cognitive difficulties: Problems with concentration, memory, and mental clarity, sometimes called “fibro fog.”
Headaches: Frequent headaches or migraines that interfere with normal activities.
Sensory sensitivity: Increased sensitivity to pressure, touch, temperature, sound, or other stimuli.
Mood changes: Anxiety, depression, or emotional distress that may accompany persistent pain.

Fibromyalgia symptoms vary from person to person. Some people experience relatively manageable symptoms, while others have severe pain and fatigue that limit their ability to maintain employment, perform household tasks, or participate in activities they previously enjoyed.

How Common Is Chronic Pain and What Do the Statistics Show?

Chronic pain is a substantial public health concern in the United States. The National Center for Health Statistics reported that 24.3% of U.S. adults experienced chronic pain in 2023, while 8.5% experienced high-impact chronic pain that frequently limited life or work activities. These figures describe chronic pain generally, not fibromyalgia specifically, but they illustrate the significant burden that persistent pain can place on individuals and families.

Medical research has also examined whether physical trauma can precede the onset of fibromyalgia. A 2002 case-control study published in Rheumatology compared 136 patients with fibromyalgia with 152 age- and sex-matched controls. Among the fibromyalgia patients, 39% reported significant physical trauma in the six months before their symptoms began, compared with 24% of the control group. The difference was statistically significant. However, the study did not establish that trauma caused fibromyalgia in those patients.

A 2005 review of research specifically examining motor vehicle collisions concluded that a collision may trigger fibromyalgia in some individuals, potentially through changes in nervous system functioning rather than solely through direct structural damage. Other researchers have questioned how strong this relationship is and have emphasized limitations in the available evidence.

These findings support an important distinction: fibromyalgia can begin after a car accident, but the timing of symptoms alone does not prove that the collision caused the condition. A careful medical assessment is necessary to evaluate the relationship between the accident, the person’s prior health, and the development of persistent symptoms.

How Can a Car Accident Trigger Fibromyalgia?

The relationship between a car accident and fibromyalgia is not fully understood. Researchers believe that fibromyalgia involves altered pain processing in the central nervous system, sometimes described as central sensitization. In this state, the nervous system may amplify pain signals or respond more strongly to sensations that would not ordinarily cause significant discomfort.

A collision can expose the body to substantial physical stress, including rapid acceleration and deceleration, twisting forces, direct impacts, and injuries to muscles, joints, and connective tissues. Although these injuries do not automatically cause fibromyalgia, a collision may be a triggering event for someone who is susceptible to developing the condition. Several factors may help explain why chronic widespread pain develops after an accident.

1. Whiplash and Soft-Tissue Injuries

Whiplash occurs when the neck moves suddenly backward and forward or otherwise experiences forceful movement during a collision. It can damage or strain muscles, ligaments, and other soft tissues. Many people recover from whiplash, but some continue experiencing neck pain, headaches, stiffness, and other symptoms for months or longer. In certain cases, widespread pain and other symptoms may eventually prompt an evaluation for fibromyalgia.

Persistent pain after whiplash does not automatically mean that fibromyalgia has developed. A physician must consider other potential causes, including nerve injuries, cervical spine disorders, and ongoing musculoskeletal damage.

2. Changes in Pain Processing

Fibromyalgia is associated with altered processing of pain signals. Researchers have investigated whether a traumatic event, including a motor vehicle collision, can contribute to these changes in susceptible individuals.

For example, a person may initially experience pain in the neck or back after an accident. Over time, pain may become more widespread, affecting the shoulders, arms, hips, legs, or other areas of the body. This pattern can be consistent with fibromyalgia, although other conditions may produce similar symptoms. Medical evaluation is necessary to determine the most likely explanation.

3. Physical and Emotional Stress

A serious car accident can produce physical trauma and considerable emotional stress. An injured person may experience anxiety, fear of driving, disrupted sleep, financial uncertainty, or difficulty returning to work.

Stress and sleep disturbances can interact with chronic pain and may worsen symptoms in some people. However, it is important not to assume that stress alone caused a person’s condition or that persistent symptoms are merely psychological.

What Are the Signs of Fibromyalgia After a Car Accident?

Fibromyalgia symptoms may develop gradually rather than appearing immediately at the accident scene. An injured person might initially focus on neck pain, bruising, or back injuries and only later recognize that pain, fatigue, and other symptoms are affecting multiple areas of the body. Symptoms that warrant medical evaluation include:

Pain that spreads beyond the original injury site.
Persistent muscle tenderness or stiffness throughout the body.
Fatigue that interferes with daily activities.
Sleep that does not leave the person feeling rested.
Frequent headaches or migraines.
Difficulty concentrating, remembering information, or completing familiar tasks.
Increased sensitivity to touch or pressure.
Ongoing symptoms that interfere with work, driving, exercise, or household responsibilities.

These symptoms are not unique to fibromyalgia. They can also occur with other injuries or medical conditions. Anyone experiencing persistent or worsening symptoms after a crash should seek medical care rather than attempting to diagnose the condition independently.

How Is Fibromyalgia Diagnosed After a Collision?

There is no single blood test, X-ray, or MRI that definitively establishes a diagnosis of fibromyalgia. Physicians generally evaluate a person’s symptoms, medical history, physical examination findings, and the presence of other conditions that could explain the symptoms.

The diagnostic process may start with reviewing the patient’s medical history. A physician will ask when the symptoms began, which parts of the body are affected, how the symptoms have changed over time, and whether similar problems existed before the collision.

Next, a physician will evaluate widespread pain. The physician may assess the distribution of pain and whether it has persisted for at least three months. Current diagnostic approaches commonly use the number of painful body regions and the severity of associated symptoms, including fatigue, unrefreshing sleep, and cognitive difficulties.

Physicians often start ruling out other explanations. Depending on the patient’s symptoms, a doctor may order blood tests or imaging studies to investigate other conditions. These could include inflammatory disorders, thyroid problems, nerve injuries, or structural spinal injuries. Finally, physicians will assess functional limitations. Physicians may ask how symptoms affect walking, lifting, sleeping, working, driving, and other activities.

A diagnosis may require follow-up appointments because symptoms can evolve after a collision. Consistent medical documentation helps the treating physician understand the progression of the condition and develop an appropriate treatment plan.

Can Fibromyalgia Symptoms Be Treated?

There is currently no cure for fibromyalgia, but treatment can help manage symptoms and improve quality of life. The appropriate approach depends on the patient’s particular symptoms, medical history, and functional limitations. The CDC recommends working with healthcare professionals to develop a management strategy that may combine self-care, therapies, and medication. Treatment may involve:

Physical activity: Gradual, appropriately tailored exercise may improve physical functioning and help some patients manage symptoms.
Physical therapy: A therapist may help improve mobility, flexibility, strength, and tolerance for daily activities.
Medication: Depending on the individual, a physician may recommend medications to address certain pain symptoms, sleep disturbances, or related conditions.
Sleep management: Establishing a consistent sleep schedule and addressing sleep disorders may help reduce fatigue.
Stress-management strategies: Relaxation techniques, counseling, or other supportive approaches may help patients cope with persistent symptoms.
Ongoing medical care: Regular follow-up helps assess treatment effectiveness and identify changes in the patient’s condition.

People recovering from a car accident should not assume that a treatment plan appropriate for one person will work for everyone. Medical decisions should be made with qualified healthcare professionals, particularly when fibromyalgia symptoms coexist with neck, back, or other traumatic injuries.

Can You Receive Compensation for Fibromyalgia Caused by a Car Accident in Illinois?

A fibromyalgia diagnosis may be relevant to an Illinois personal injury claim when the evidence supports that the collision caused the condition or aggravated a preexisting condition. However, compensation is not automatic simply because symptoms appeared after an accident.

An injured person generally must establish that another party was legally responsible for the collision and that the collision caused compensable harm. Medical evidence connecting the accident to the fibromyalgia or its aggravation can be particularly important because fibromyalgia is a complex condition without a single definitive diagnostic test. Potentially recoverable damages may include:

Past and reasonably anticipated future medical expenses.
Physical therapy, rehabilitation, and other appropriate treatment costs.
Lost wages resulting from an inability to work.
Reduced future earning capacity, when supported by evidence.
Pain and suffering.
Emotional distress associated with the injuries.
Loss of normal activities and diminished quality of life.

The amount of compensation depends on the facts of the case, the strength of the evidence, the extent of the injury, and applicable Illinois law.

Why Medical Documentation Matters

Insurance companies may question whether fibromyalgia was caused by a collision, particularly when imaging does not reveal a clear structural explanation for widespread pain. They may argue that the condition existed before the accident or that other factors explain the symptoms. Thorough medical records can help address these issues. Important documentation may include:

Medical records from before and after the accident, when available.
Emergency department and primary care records.
Records from rheumatologists, pain specialists, and other treating physicians.
Documentation of when widespread pain and related symptoms first appeared.
Treatment recommendations and records showing the response to treatment.
Evidence of missed work, reduced hours, or changes in job responsibilities.
Statements describing how symptoms affect ordinary daily activities.

When medically appropriate, a physician or qualified medical expert may be asked to explain the diagnosis, the relationship between the collision and the symptoms, and whether the accident aggravated an existing condition. The goal is not simply to demonstrate that a person has fibromyalgia. It is to establish, through reliable evidence, the nature and extent of the condition and its relationship to the accident.

What Should You Do if You Develop Fibromyalgia After a Car Accident?

If you suspect that fibromyalgia symptoms began or worsened after a collision, taking practical steps can help protect both your health and your ability to document your injuries.

Seek medical evaluation. Explain all your symptoms, including widespread pain, fatigue, sleep difficulties, and cognitive changes. Do not focus exclusively on the most obvious physical injuries.
Follow your treatment plan. Attend recommended appointments and tell your healthcare providers when symptoms worsen or interfere with daily activities.
Keep a symptom journal. Record your pain levels, affected body areas, sleep quality, fatigue, medication use, and limitations on work or household tasks.
Preserve relevant records. Keep medical bills, treatment records, prescription information, wage-loss documentation, and insurance correspondence.
Be accurate about your medical history. Tell your providers and legal representative about previous injuries or symptoms. A preexisting condition does not necessarily prevent you from pursuing compensation if a collision aggravated it.
Consider legal advice. If another driver’s negligence caused the accident, an experienced Illinois car accident attorney can evaluate the evidence, explain applicable deadlines, and help you understand your options.

Avoid minimizing symptoms simply because they cannot be seen on an imaging study. At the same time, do not assume that every symptom following a collision is necessarily caused by fibromyalgia. A careful medical evaluation is essential.

Frequently Asked Questions About Fibromyalgia and Car Accidents

Can a minor car accident cause fibromyalgia?

It is possible for fibromyalgia symptoms to begin after a collision that does not appear particularly severe. However, the severity of the vehicle damage alone cannot establish whether the accident caused the condition. The individual’s medical history, symptoms, and clinical findings must be considered.

How long after a car accident can fibromyalgia develop?

There is no universal timeline. Some people notice symptoms relatively soon after an injury, while others experience a gradual progression of pain and fatigue. A physician can evaluate the symptom timeline and determine whether the presentation is consistent with fibromyalgia or another condition.

Can fibromyalgia be diagnosed with an MRI?

No. An MRI can help identify certain structural injuries or other medical conditions, but it does not definitively diagnose fibromyalgia. Diagnosis generally relies on symptom assessment, medical history, physical examination, and consideration of alternative explanations.

Can a car accident make preexisting fibromyalgia worse?

Yes. A collision may aggravate symptoms in someone who already has fibromyalgia. A personal injury claim may include damages for a documented worsening of a preexisting condition when the evidence supports that the accident caused the aggravation.

Will an insurance company pay for fibromyalgia after a car accident?

An insurer may be responsible for compensable fibromyalgia-related losses when liability and the connection between the collision and the condition are established. Coverage, causation disputes, medical evidence, and the circumstances of the accident can all affect the outcome. There is no guarantee that an insurer will accept the claim.

How much is a fibromyalgia car accident claim worth in Illinois?

There is no standard settlement amount for fibromyalgia following a car accident. Relevant factors include the severity and duration of symptoms, medical expenses, future treatment needs, lost income, functional limitations, the strength of the causation evidence, and the available insurance coverage. Each case requires an individualized assessment.

What if I had no fibromyalgia symptoms before the accident?

The absence of prior symptoms may be relevant evidence, especially when medical records document a clear change after the collision. However, it does not independently prove causation. Your medical providers and, where appropriate, qualified experts may need to evaluate other potential explanations.

Speak With the Top-Rated Illinois Car Accident Lawyers at John J. Malm & Associates About Your Injuries

Fibromyalgia can turn an already difficult car accident recovery into a long-term struggle with pain, fatigue, disrupted sleep, and reduced independence. When another driver’s negligence causes a collision, you should not have to navigate the resulting medical and financial challenges without understanding your legal rights. At John J. Malm & Associates, our attorneys represent people injured in car accidents throughout Illinois. We understand the importance of thoroughly documenting serious injuries, investigating disputed causation issues, and presenting evidence of how an injury affects a client’s everyday life.

If you developed widespread pain, fatigue, or other symptoms consistent with fibromyalgia after a car accident, contact John J. Malm & Associates for a free case evaluation. Our team can review the circumstances of your collision, help you understand what evidence may be needed to support your claim, and explain your options for pursuing compensation. Contact our firm to discuss your injuries and learn how we may be able to help.