Physical changes
Dizziness, balance or vision problems; nausea; sensitivity to light or noise.
Auto accident headaches
Headaches After a Car Accident
What They May Mean and When to Get Evaluated
Headaches may occur alongside neck symptoms, but can also signal concussion or another head injury. Symptoms alone cannot identify the cause; evaluation and warning signs matter.
Check the emergency warning signs below. Routine appointments are for non-emergency concerns.
Start with an assessment
Why Do I Have a Headache After a Car Accident?
Several explanations may need consideration, including head injury and a possible neck-related component. More than one issue may be present.
A headache does not establish concussion, migraine or a cervical diagnosis. Seek medical advice about a new headache after trauma.
Can Neck Pain and Headaches Occur Together After an Accident?
Yes. Headache can accompany whiplash-associated neck symptoms. That association does not prove the neck is the source of your headache or exclude a head injury.
Read about neck pain after a collision and whiplash for separate information about those concerns.
Understanding head injury
Could a Headache After a Car Accident Be a Concussion Symptom?
Yes, but headache alone does not diagnose concussion. A concussion is a mild traumatic brain injury. A blow or jolt to the head, or a body impact that rapidly moves the head and brain, can cause it.
You do not have to lose consciousness. Symptoms vary and may become noticeable immediately or later. They can include:
Thinking & memory
Trouble concentrating or remembering, or feeling foggy or slowed down.
Energy, sleep & mood
Fatigue, changes in sleep, irritability or feeling more emotional.
This page cannot determine whether you have a concussion. CDC: Get medical assessment for suspected concussion.
When to seek emergency care
When Is a Headache After an Accident an Emergency?
Call 911 or go to an emergency department right away for head-injury danger signs.
- A headache that worsens and will not go away
- Repeated vomiting or a seizure
- Weakness, numbness or reduced coordination
- Slurred speech or unusual behavior
- Increasing confusion, agitation or not recognizing people or places
- One pupil larger than the other
- Loss of consciousness, extreme drowsiness or inability to wake
Do not wait for a routine office appointment or use chiropractic care as an alternative to emergency evaluation.
CDC: Adult head-injury danger signs · NHS: Head injury and concussion
Symptoms can change
Can Headache or Concussion Symptoms Start Later?
Some concussion symptoms are apparent right away; others may not appear until hours or days later. Timing alone cannot identify the injury.
Tell a healthcare professional about new or changing symptoms. Emergency signs need immediate care even if you were already evaluated.
What to do after a car accident →How Are Headaches After a Car Accident Evaluated?
A medical assessment may review the collision, any head impact or loss of consciousness, memory changes, prior headaches and medications.
- Headache pattern, onset and progression
- Neck symptoms, dizziness, balance and vision changes
- Nausea, vomiting and thinking or concentration changes
- Physical and neurological findings, with prior ER or hospital records
Suspected concussion or significant neurological findings require appropriate medical assessment. Referral, co-management or emergency evaluation may take priority over conservative musculoskeletal care.
Do I Need a CT Scan, MRI, or X-Ray for a Headache After a Car Accident?
Imaging is not automatic for every headache. History, mechanism, examination and warning signs guide medical decisions.
CT is often used when urgent investigation for bleeding or serious injury is needed. MRI may help with selected further evaluation. A routine X-ray cannot rule out concussion.
Concussion is assessed clinically; a scan is not required to establish it. Normal imaging does not invalidate symptoms or exclude concussion.
Different considerations
What May Contribute to Headaches After a Collision?
Head injury
Headache can occur with concussion or another traumatic injury and needs medical consideration.
Neck-related symptoms
A musculoskeletal component may coexist, but neck pain does not establish the headache's source.
Headache history
Prior headaches and changes in your usual pattern help inform the assessment.
“Post-traumatic” describes a relationship to injury; it does not identify one specific tissue or treatment. Patterns may overlap.
How Are Headaches After a Car Accident Treated?
Treatment depends on the cause. Head injury management differs from care for an accompanying neck problem or a pre-existing headache disorder.
For suspected concussion, medical guidance about symptoms and a safe return to activities takes priority. Musculoskeletal exercise or manual care is considered only when appropriate to the findings.
Do not treat a post-collision headache as a reason to start neck manipulation without assessment.
Can Chiropractic Care Be Part of Treatment?
For selected patients with an appropriate musculoskeletal component, such as accompanying neck pain or movement limitations, conservative care may be one part of management.
Dr. Brett Goldstein, D.C. may recommend suitable approaches based on examination findings. Suspected concussion, serious head injury or significant neurological symptoms require medical referral, co-management or emergency evaluation first.
Chiropractic care is not presented here as a treatment for concussion. Manipulation can cause temporary soreness; rare serious neurological or neck-artery complications have been reported. Discuss risks and alternatives.
Recognizing the appropriate next step
Headache Evaluation After an Accident with Dr. Brett Goldstein
Dr. Brett Goldstein, D.C.'s role includes accident and symptom history, neck and musculoskeletal examination, neurological screening and review of available records.
At Goldstein Sports Chiropractic & Auto Injury Center, Dr. Goldstein uses your examination to determine whether conservative care is appropriate and identify concerns that may need medical referral.
Suspected serious head injury is not managed through a routine chiropractic appointment.
Meet Dr. Goldstein →Follow the course of symptoms
How Long Can Headaches Last After a Car Accident?
Duration varies with the cause and individual circumstances. Some symptoms improve sooner; others persist and need follow-up.
There is no guaranteed timeline, and prolonged symptoms do not by themselves establish permanent injury. Worsening symptoms need reassessment; danger signs require emergency care.
Prepare for a non-emergency visit
What Should I Bring to an Evaluation?
Keep records secure; this page does not request medical uploads. Do not delay emergency care to gather paperwork.
For another concern, see the back-pain guide.
- Photo identification and relevant insurance information
- Accident or report information, if available
- Available ER, hospital or urgent-care records
- Imaging reports, if available
- Medication information
- A timeline of symptoms and relevant prior headache history
- Questions for the provider
Common questions
Headaches After a Car Accident FAQs
Why do I have a headache after a car accident?
Head injury and accompanying neck symptoms are among the considerations. Headache alone does not identify the cause.
Can headaches start later after an accident?
Some concussion symptoms may appear hours or days later. New or changing symptoms need medical assessment.
Is headache a symptom of concussion?
Yes, but having a headache does not by itself establish a concussion diagnosis.
Can I have a concussion without losing consciousness?
Yes. Loss of consciousness is not required.
When should I go to the ER for a headache after an accident?
Seek emergency care for worsening persistent headache, repeated vomiting, seizures, weakness, confusion, unusual drowsiness or other head-injury danger signs listed above.
Can neck pain cause or accompany headaches?
Some headaches have a neck-related component, and headache can accompany whiplash. This does not establish that a post-collision headache comes from the neck.
Do I need a CT scan?
Not automatically. A medical clinician may use CT to look for bleeding or other serious injury when the findings warrant it.
Do I need an MRI?
MRI has selected uses in further evaluation. It is not a routine test that proves concussion or explains every headache.
Can chiropractic care be part of treatment?
Only when evaluation identifies an appropriate musculoskeletal component. Suspected head injury or significant neurological findings take priority for medical assessment.
How long can headaches last?
Duration varies by cause and individual circumstances. Persistent symptoms need follow-up; no recovery timeline is guaranteed.
What should I bring to my evaluation?
Available records, imaging reports, medication information, prior headache history and a symptom timeline. Do not delay emergency care to gather paperwork.
Medical Information
This page provides general educational information and does not replace an individual medical evaluation or emergency care.
Sources accessed September 6, 2026: CDC: Symptoms and danger signs; CDC: About concussion; Mayo Clinic: Concussion; Mayo Clinic: Evaluation and imaging; NHS: Head injury; MedlinePlus: Concussion; Mayo Clinic: Whiplash; NIH NCCIH: Manipulation and safety.
Auto injury care
Headaches After a Collision?
For non-emergency headache, neck pain or other musculoskeletal symptoms after a collision, an evaluation can help determine appropriate next steps.
If you have emergency head-injury warning signs, seek emergency medical care rather than scheduling a routine office visit.