“Is it normal to still have headaches after my accident?”
The short answer is yes, headaches can continue for days, weeks, or even months after a car accident. However, a persistent headache should not be ignored just because someone was told recovery “takes time.”
The better question is, why is the headache continuing, and is the patient recovering as expected?
Headaches after an automobile collision can develop from several overlapping problems, including whiplash, irritated muscles and joints in the upper neck, concussion or mild traumatic brain injury, changes in sleep, increased pain sensitivity, or a migraine-like response following trauma. Because the cause can vary from one patient to another, recovery time also varies.
For additional information about the different headache patterns that can develop following a collision, patients can review Post-Accident Headaches in El Paso: Pain Relief.
What Is a Post-Injury Headache?
A post-injury, or post-traumatic, headache is a headache that develops after trauma involving the head, neck, or both.
Importantly, a person does not always have to strike their head against the steering wheel, window, or another object to develop symptoms.
During a collision, the head and neck can accelerate and decelerate rapidly. The head may move forward, backward, or sideways while the muscles, ligaments, joints, nerves, and other cervical spine tissues try to control those forces.
This movement can contribute to whiplash-associated injuries and cervicogenic headaches originating from structures in the neck.
The brain can also experience acceleration and deceleration forces without a direct impact to the skull. For that reason, headaches accompanied by brain fog, concentration problems, dizziness, memory changes, light sensitivity, nausea, or unusual fatigue may require evaluation for a possible concussion or mild traumatic brain injury.
Dr. Jimenez discusses these mechanisms in greater detail in his integrated medical and chiropractic motor-vehicle injury case review.
Acute vs. Persistent Headaches: Why Three Months Matters
Patients should understand an important clinical distinction.
The International Classification of Headache Disorders, Third Edition, or ICHD-3, generally categorizes headaches attributed to traumatic injury as acute during the first three months after headache onset. When the headache continues for more than three months, it may meet criteria for a persistent post-traumatic headache, depending on the timing, history, and clinical findings.
The same basic three-month distinction applies to whiplash-associated headaches.
This means the terms "acute" and "persistent" describe headache duration. They do not necessarily describe headache severity.
It is also important to understand what the three-month mark does not mean.
Three months is not a predetermined treatment period.
A doctor should not automatically decide on the day of the accident that every patient requires exactly 12 weeks of treatment. Likewise, reaching three months does not mean someone has reached maximum recovery or that the headache has become permanent.
Instead, the three-month distinction provides clinicians with a useful way to describe the course of the condition and recognize when a headache has lasted longer than expected.
How Long Do Headaches Usually Last After an Accident?
There is no single answer.
Some patients notice significant improvement within days. Others require several weeks. A smaller but clinically important group continues experiencing headaches for several months or longer.
The Centers for Disease Control and Prevention notes that many people with mild traumatic brain injury or concussion improve within a couple of weeks. However, symptoms can last much longer in some individuals, and patients whose symptoms are not improving or are worsening should discuss the change with their healthcare provider.
Research also demonstrates considerable variation in post-traumatic headache recovery.
A 2024 neurological review reported that although the majority of post-traumatic headaches resolve during the acute period, roughly one-third of affected individuals may experience headaches that persist for several months. More recent prospective research has also identified a substantial subgroup of patients who develop persistent post-traumatic headache following mild traumatic brain injury. Differences among studies reflect different patient populations, definitions, injury severity, and follow-up periods (Atalar et al., 2026; Schwedt, 2024).
The important message for patients is simple:
Recovery after an accident is individual.
Why Do Some Headaches Last Longer Than Others?
A headache that continues does not necessarily mean that something dangerous is happening. However, persistent symptoms should encourage clinicians to look more closely at the factors maintaining the headache.
For example, one person may primarily have irritated upper cervical joints and muscles after whiplash. Another may have a migraine-like post-traumatic headache. Another may have symptoms associated with concussion. Some patients have several of these problems at the same time.
Sleep disturbance can further amplify pain sensitivity. Persistent neck pain can continue sending pain signals toward the head. Anxiety surrounding the accident may make sleep and muscle tension worse. Previous migraine history may influence how someone responds to trauma.
Research increasingly recognizes that post-traumatic headache is not one uniform disorder. Different patients can develop different headache patterns, which supports individualized assessment and treatment rather than assuming every post-accident headache should be managed the same way (Díaz & Lehman, 2026).
“My Head Still Hurts. Does That Mean Something Is Wrong?”
Not necessarily—but it means you should keep monitoring the headache.
A gradually improving headache differs from a headache that stays unchanged, becomes more frequent, increases in intensity, or develops new neurological symptoms.
This is why follow-up evaluations matter.
At each reassessment, the healthcare team can ask whether headache frequency has changed, whether the intensity is decreasing, whether sleep is improving, whether neck movement has returned, and whether dizziness, visual symptoms, concentration problems, numbness, weakness, or other neurological complaints have appeared.
The clinical plan should evolve with the patient.
Treatment should not continue simply because the calendar says another visit is due.
Likewise, care should not automatically stop because a predetermined number of visits has been reached.
Why Reassessment Is More Important Than a Predetermined Treatment Duration
Recovery from a motor-vehicle injury is rarely perfectly linear.
Someone may make substantial progress for two weeks and then flare up after returning to work, driving for several hours, increasing exercise, or sleeping poorly.
Another person may have neck pain improve while headaches remain.
A third patient's musculoskeletal symptoms may improve while concentration problems, dizziness, or visual complaints become more apparent.
Those differences can change the clinical plan.
A reassessment helps determine whether conservative treatment remains appropriate, whether rehabilitation should progress, whether diagnostic imaging is warranted, or whether the patient needs referral to neurology, pain management, primary care, emergency medicine, or another specialist.
This approach supports patient safety and autonomy because treatment decisions are based on what the patient's body is actually doing, not an arbitrary timeline.
For more information about accident-related soft-tissue assessment and coordinated care, see Dr. Alexander Jimenez: El Paso's Joint and Soft Tissue Injury Specialist for Personal Injury Care.
When Is a Headache After an Accident an Emergency?
Most post-accident headaches are not medical emergencies, but certain symptoms require immediate attention.
The CDC recommends emergency evaluation when a person develops warning signs following a head or body injury, including:
A headache that becomes progressively worse and does not go away
Repeated vomiting
New weakness, numbness, or loss of coordination
Slurred speech or unusual behavior
Increasing confusion, agitation, or inability to recognize people or places
Seizures
Significant drowsiness or difficulty waking
One pupil becoming larger than the other
Double vision or loss of consciousness
Do not manage these symptoms with routine chiropractic treatment alone. Emergency medical evaluation should take priority.
Where Does Chiropractic Care Fit?
For appropriately screened patients, chiropractic and rehabilitative care may be useful when headaches have a significant cervical or musculoskeletal component.
Whiplash can injure muscles, ligaments, joints, and other soft tissues surrounding the cervical spine. These structures can become painful and stiff, sometimes referring pain upward toward the base of the skull, temples, forehead, or behind the eyes.
Treatment may therefore address cervical mobility, muscular tension, posture, movement control, and gradual rehabilitation when clinically appropriate.
Chiropractic care should not be viewed as a treatment for every possible cause of headache, nor should it replace appropriate medical or neurological evaluation when concussion or another medical disorder is suspected.
Instead, the goal is to determine which structures and systems are contributing to the patient's symptoms and coordinate care accordingly.
Patients interested in learning more about conservative headache management can review Dr. Jimenez's Headaches and Treatment educational resource.
What Makes Injury Medical Chiropractic and Functional Medicine Clinic Different?
One important feature of Dr. Jimenez's Injury Medical Chiropractic and Functional Medicine Clinic in El Paso is its multidisciplinary structure.
The clinic includes Dr. Maria Guadalupe Cardenas, MD, a board-certified internal medicine physician who serves as Medical Director, Clinical Director, and Collaborative Physician. The practice also incorporates advanced-practice nurse practitioner care focused on joint and soft-tissue injury assessment, alongside chiropractic physical medicine and rehabilitation. DrAlexJimenez.com identifies this coordinated medical and chiropractic structure as a distinctive model within the El Paso healthcare community.
This integrated approach is particularly valuable after motor-vehicle injuries because headache symptoms may involve more than one system.
A patient may simultaneously have cervical soft-tissue injury, altered joint movement, muscle guarding, sleep disruption, neurological symptoms, and other medical concerns. Medical and chiropractic perspectives working together can help determine when conservative musculoskeletal treatment is appropriate and when additional medical testing or specialist referral is needed.
Learn more about the clinic's multidisciplinary approach in Why Choose Dr. Jimenez and the Clinical Team.
So, Is It Normal to Still Have Headaches After My Car Accident?
It can be.
Having headaches for several days or weeks after an accident does not automatically mean something has gone seriously wrong. Even headaches lasting several months can occur following head or neck trauma.
But ongoing headaches deserve ongoing clinical attention.
The important question is not simply how many days have passed.
Healthcare providers should look at whether the headache is becoming less frequent, less intense, and less disruptive; whether neck movement and daily function are returning; and whether new neurological symptoms have appeared.
If a headache continues beyond three months, it becomes a persistent headache when it meets the appropriate diagnostic criteria. That classification should encourage thoughtful reassessment—not the assumption that the condition is permanent and not the automatic continuation of the same treatment plan indefinitely.
The goal is to keep asking the right clinical question:
“Is this patient recovering, and if not, what needs to be reevaluated?”
That patient-centered approach allows treatment to change as recovery changes while helping people make informed decisions about their health after an accident.
References
Atalar, A. Ç., Yılmaz, G. G., Baykan, B., et al. (2026). Follow-up of post-traumatic headache patients: A multicenter prospective study on headache phenotype and impact after mild traumatic brain injury. Journal of Neurotrauma, 43(13–14), 1114–1125. https://doi.org/10.1177/08977151251412889
Centers for Disease Control and Prevention. (2025). Symptoms of mild TBI and concussion. U.S. Department of Health and Human Services.
Centers for Disease Control and Prevention. (2025). What to do after a mild TBI or concussion. U.S. Department of Health and Human Services.
Díaz, P. G., & Lehman, A. B. (2026). Phenotype-guided management of post-traumatic headache: An update on pathophysiology and treatment. Current Pain and Headache Reports, 30(1), 98. https://doi.org/10.1007/s11916-026-01535-y
Headache Classification Committee of the International Headache Society. (2018). Headache attributed to trauma or injury to the head and/or neck. International Classification of Headache Disorders, Third Edition.
Schwedt, T. J. (2024). Posttraumatic headache. Continuum, 30(2), 411–424. https://doi.org/10.1212/CON.0000000000001410
The information herein is not intended to replace a one-on-one relationship with a qualified healthcare professional or licensed physician and is not medical advice. We encourage you to make healthcare decisions based on your research and partnership with a qualified healthcare professional. Our information scope is limited to chiropractic, musculoskeletal, and physical medicine, as well as wellness, sensitive health issues, and functional medicine articles, topics, and discussions. We provide and facilitate clinical collaboration with specialists across disciplines. Each specialist follows their professional scope of practice and the jurisdiction in which they are licensed. We utilize functional health and wellness protocols to treat and support care for musculoskeletal injuries or disorders. Our videos, posts, topics, subjects, and insights cover clinical matters and issues that directly or indirectly support our clinical scope of practice. Our office has made a reasonable effort to provide supportive citations and identify relevant research studies for our posts. We provide copies of supporting research studies to regulatory boards and the public upon request.
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Dr. Alex Jimenez, DC, MSACP, APRN, FNP-BC*, CCST, IFMCP, CFMP, ATN
Email: coach@elpasofunctionalmedicine.com
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Licensed as a Doctor of Chiropractic (DC) in Texas & New Mexico*
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Dr. Alex Jimenez, DC, APRN, FNP-BC*, CFMP, IFMCP, ATN, CCST
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Dr. Maria Cardenas, MD
(Board Certified in Internal Medicine)
Medical Director & Collaborative Physician
NPI # 1164426748
MD License #: J2933
Dr. Maria Cardenas, MD
(Board Certified in Internal Medicine)
Medical Director & Collaborative Physician
NPI # 1164426748
MD License #: J2933
