The Importance of MRI Scans After a Car Accident
Updated: 4 days ago
After a car accident, you may feel fine at first, only to notice pain days later. An MRI can help your doctor find injuries that are hard to see on an X-ray, such as damage to soft tissue, discs, ligaments, and the brain. Getting checked early can help you get the right care sooner.
This guide explains why symptoms can be delayed, what an MRI can show after a crash, and when to talk with your doctor about imaging.
Why some car accident injuries are hidden
Symptoms can show up later
During and after a crash, your body releases adrenaline and stress hormones. These can mask pain for hours or even days. An injury that seems minor at first may become more painful over time.
If you notice new or worsening pain, stiffness, numbness, tingling, headaches, or trouble thinking clearly after an accident, see a doctor.
Many injuries are not visible from the outside
Cuts and bruises are easy to spot. Other injuries are not. Whiplash, herniated discs, ligament tears, and concussions can all happen without obvious outside signs. If they are not found and treated, some of these injuries can lead to longer-lasting problems.
How an MRI helps find hidden injuries
Detailed pictures of soft tissue
An MRI uses a strong magnet and radio waves to make detailed pictures of the inside of your body. It is especially good at showing soft tissues, including muscles, ligaments, tendons, discs, nerves, the spinal cord, and the brain.
X-rays are very good at showing bones, but they do not show soft tissue well. That is why your doctor may order an MRI when an X-ray looks normal but you still have pain. To compare imaging tests, see MRI vs. CT vs. X-ray.
No ionizing radiation
An MRI does not use X-rays or other ionizing radiation. This can be helpful if your doctor wants follow-up scans to see how an injury is healing. Learn more about why MRI scans use no radiation.
Common car accident injuries an MRI can show
Whiplash and other soft tissue injuries
Whiplash happens when the head and neck snap forward and back quickly. It can strain or tear the muscles, ligaments, and tendons in the neck. An MRI can show this kind of soft tissue damage and help your doctor plan treatment.
Sprains and strains
The force of a crash can also sprain or strain the back, shoulders, knees, and other joints. An MRI can show damage to ligaments, tendons, and muscles. For example, see when to get an MRI for knee pain.
Spine injuries
A collision can injure the spine. Common spine injuries include:
Herniated discs, where the soft center of a disc pushes out and may press on a nerve
Fractures of the vertebrae, the bones of the spine
Injuries to the spinal cord
Strains and tears of the ligaments that support the spine
An MRI gives a clear view of the discs, nerves, and spinal cord. Read more in our article on spinal injuries in car accidents.
Brain injuries
A car accident can cause a traumatic brain injury, from a mild concussion to more serious harm. An MRI can show some brain injuries, such as bruising (contusions), swelling, or bleeding (hematomas). Not every concussion shows up on an MRI. Your doctor will look at your symptoms as well as your images.
Bone injuries X-rays may miss
X-rays are usually the first test for broken bones. But small cracks, called hairline or occult fractures, and bone bruises may not show up on an X-ray. An MRI can often find these injuries.
Protecting your health after an accident
Getting the right care
An accurate diagnosis helps your doctor choose the right treatment. Finding an injury early may also help you start treatment sooner. Your doctor decides whether you need an MRI, which body part to scan, and what to do next.
Keeping clear medical records
Your MRI report becomes part of your medical record. It documents what the images show. If you have an insurance claim or are thinking about legal action, your attorney may want copies of your records. An MRI documents injuries. It does not decide the outcome of a claim. Insurance rules also vary by state. Talk with an attorney about your specific situation. To learn more, read how MRI scans relate to a car accident claim.
When to see a doctor after a car accident
Get emergency care right away for severe pain, loss of consciousness, trouble breathing, weakness, or loss of feeling. For other symptoms, see your doctor as soon as you can. Signs that you should get checked include:
Neck or back pain that starts or gets worse in the days after the crash
Headaches, dizziness, confusion, or memory problems
Numbness, tingling, or weakness in your arms or legs
Joint pain, swelling, or trouble moving a limb
Pain that is not getting better
Frequently asked questions
How soon after a car accident should I get an MRI?
There is no single timeline. See a doctor soon after the accident. Your doctor will decide whether and when an MRI is needed based on your symptoms and exam.
Do I need a doctor's order for an MRI after an accident?
If you're using insurance, including auto insurance, you'll usually need an order from a licensed provider that says which body part to scan. If you pay cash (self-pay), no referral is needed at Millenium MRI.
Can an MRI show whiplash?
An MRI can show damage to the muscles, ligaments, and discs in the neck that may happen with whiplash. Some whiplash injuries do not show up on any imaging test.
Will an X-ray show the same thing as an MRI?
No. X-rays mainly show bones. An MRI shows soft tissue, discs, nerves, and the brain in much more detail.
Does Millenium MRI accept personal injury cases?
Yes. Millenium MRI accepts personal injury cases, as well as most insurance plans, workers' compensation, and self-pay.
Related reading
Schedule an MRI at Millenium MRI
Millenium MRI has centers in Ocala, Largo, and Tamarac, Florida, and in North Little Rock, Springdale, Jonesboro, and Marion, Arkansas. Same-day appointments are often available, and results are usually sent to your referring doctor within 24 hours. We accept personal injury cases, most insurance plans, workers' compensation, and self-pay. Call your nearest center or request an appointment online.
This article is for general information and is not medical advice. Talk with your doctor about your specific situation.
MRIs are often underestimated after car accidents, but they’re key for detecting soft tissue or spinal issues that may not appear right away. In my case, combining imaging with a physical evaluation helped clarify the real extent of the injury. After the accident, I also followed up with a Buckhead chiropractic clinic for mobility and recovery support: https://www.arrowheadclinic.com/chiropractor/georgia/buckhead . Early assessment really made a difference.