# Car accident injuries: common types, medical records and your claim

> Common car accident injuries, why same-day care and records matter, delayed symptoms, no-fault injury thresholds and how injuries shape a claim.

Canonical page: https://accidentclaimfacts.com/injuries/  
Last reviewed: October 29, 2026 by the Accident Claim Facts editorial team  
General information, not legal advice. Talk to a licensed attorney in your state.

## Quick answer

Car crashes cause injuries that range from neck sprains to brain and spinal cord damage. In an injury claim, the medical record does most of the work: it shows that you were hurt, that the crash caused it and what care the injury needed. Same-day care, a full account of every symptom and steady follow-up make that record stronger. The type of injury then shapes what the claim can include, how long it takes and, in no-fault states, whether you can sue for pain and suffering at all.

## Key facts

| Fact | Detail | Note |
|---|---|---|
| People injured in US crashes | 2,422,195 | NHTSA estimate, 2024 |
| People killed in US crashes | 39,254 | NHTSA, 2024 |
| Injury crashes that were rear-end collisions | 27.2% | NHTSA, 2023 |
| Nonfatal brain-injury hospital stays caused by crashes | 23.8% | CDC, 2018; second only to falls |
| Spinal cord injuries caused by vehicle crashes | 37.1% | Since 2015; the leading cause (NSCISC) |
| Time a provider has to answer a records request | 30 days | HIPAA right of access |
| States with no-fault limits on lawsuits | 12 | Plus Puerto Rico |

## The injuries crashes cause most often

A crash puts sudden force on the body, and the head and neck can snap forward and back. NHTSA estimates that 2,422,195 people were injured and 39,254 were killed in US traffic crashes in 2024.

Some injuries are far more common than others. According to the Insurance Institute for Highway Safety (IIHS), neck sprains and strains are the most frequently reported injuries in U.S. auto insurance claims. Rear-end collisions, the crash type IIHS says typically causes them, made up 27.2% of police-reported injury crashes in 2023. Motor vehicle crashes also caused 23.8% of nonfatal hospital stays for traumatic brain injury in 2018, and 37.1% of spinal cord injuries since 2015.

The guides in this section cover the injuries that come up most often in car accident claims:

| Guide | What it covers | What often matters in the claim |
|---|---|---|
| [Whiplash](https://accidentclaimfacts.com/injuries/whiplash/) | Neck sprains and strains, often from rear-end crashes | Early records and steady treatment, because insurers question soft-tissue claims |
| [Traumatic brain injury](https://accidentclaimfacts.com/injuries/traumatic-brain-injury/) | Concussion and more serious brain injuries | Symptoms that appear later and scans that can look normal |
| [Spinal cord injury](https://accidentclaimfacts.com/injuries/spinal-cord-injury/) | Damage to the spinal cord, complete or incomplete | Lifetime care needs and longer timelines |
| [Back and neck injuries](https://accidentclaimfacts.com/injuries/back-and-neck-injuries/) | Herniated discs, sprains, strains and spine fractures | Age-related wear versus damage from the crash |
| [Broken bones](https://accidentclaimfacts.com/injuries/broken-bones/) | Fractures from the impact | Surgery, recovery time and time off work |
| [Burn injuries](https://accidentclaimfacts.com/injuries/burn-injuries/) | Burns and the scars they can leave | Grafts, scarring and disfigurement |
| [PTSD after a car accident](https://accidentclaimfacts.com/injuries/ptsd-after-a-car-accident/) | Post-traumatic stress and other mental-health effects | A diagnosis from a qualified professional and treatment records |
| [Wrongful death](https://accidentclaimfacts.com/injuries/wrongful-death/) | Claims by family members after a fatal crash | Who may bring the claim and its own deadline |

## Why same-day medical care matters

The first reason is your health. Some serious injuries, such as bleeding in or around the brain, can get worse over hours, and only a medical check can find them.

The second reason is the claim. Insurers look closely at the time between the crash and the first doctor's visit. A same-day note that records the crash and your symptoms ties the injury to the crash in a way a visit weeks later cannot. Our guide to [the first 72 hours after a car accident](https://accidentclaimfacts.com/blog/first-72-hours-after-a-car-accident/) covers the other early steps.

At that first visit, many people say plainly that they were in a car crash and list every place that hurts, even minor pain. A doctor can only record what they are told and what they find.

> **Warning:** The CDC lists danger signs after a blow or jolt to the head: a headache that gets worse and does not go away, weakness or numbness, repeated vomiting, slurred speech, confusion, or being very drowsy or hard to wake. Anyone with these signs needs emergency care right away: call 911 or go to an emergency room.

## Symptoms that can show up later

Not every injury makes itself known at the scene. The CDC says some concussion symptoms may not appear for hours or days after the injury. The National Institute of Neurological Disorders and Stroke (NINDS) explains that bruising of the brain can appear after a delay of hours to a day, and that some brain damage develops over hours, days or weeks after the first injury.

Other injuries follow a similar pattern. MedlinePlus, the National Library of Medicine's health site, says whiplash often causes neck pain and stiffness for the first few days, and that pain from a herniated disk often starts slowly.

A later diagnosis does not end a claim, but it invites a question: did something else happen in between? When each provider records when a symptom started, and you keep dated notes, the gap explains itself.

> **Example:** A driver feels shaken but fine after a rear-end crash and is checked at urgent care the same evening. Two days later, she has headaches and trouble concentrating, and goes back. Because the first visit recorded the crash and her neck pain, and the second records when the new symptoms began, the timeline is clear.

## How an injury is documented for a claim

An injury claim has to prove causation: that this crash caused this injury. Most of that proof comes from records made in the normal course of care. A claim file usually builds in this order:

1. **The first medical visit.** The emergency room, urgent care or doctor's notes record the crash, your complaints and what the provider found on examination.
2. **Follow-up care and referrals.** Visits to your own doctor, specialists and physical therapy show how the injury developed and what treatment it needed.
3. **Tests and imaging.** X-rays, CT and MRI scans and other tests are part of the record, but they have limits. NINDS notes that today's imaging and blood tests cannot always detect damage from mild brain injuries, and MedlinePlus notes that a spine MRI can pick up age-related changes that are not the cause of current pain.
4. **Records and itemized bills.** Ask every provider for copies in writing. Under HIPAA, a provider must act on your request within 30 days. Our guide to [medical records for an injury claim](https://accidentclaimfacts.com/claim-process/medical-records/) explains how.
5. **Your own notes and photos.** A short, dated journal of pain, sleep, missed work and missed activities, plus photos of bruises, cuts and casts, shows what the records leave out.
6. **Statements from other people.** An employer's letter about missed days, and accounts from family or friends who saw how the injury changed your daily life, fill in the rest.

Insurers read these records for when treatment started, whether it was continuous and whether your complaints stayed consistent. Gaps of weeks without care are among the first things an adjuster raises.

## Maximum medical improvement and timing

Many injury claims are not valued until the injured person reaches maximum medical improvement (MMI): the point at which doctors expect no further recovery, whether or not the person is fully healed. Before then, nobody knows the full cost of the injury, including any future care.

That is why many people wait to settle. A settlement is usually final: once you sign the release, you generally cannot claim more for the same crash, even if the injury turns out to be worse than it seemed.

Waiting has a limit, though. Your state's statute of limitations keeps running while you treat and while you talk to insurers. For an adult's injury claim it is as short as 1 year in Tennessee and 2 years in Texas. For a serious injury that takes a long time to reach MMI, a lawsuit may need to be filed to protect the claim while treatment continues. The [claim process guide](https://accidentclaimfacts.com/claim-process/) shows how the stages fit together.

## How the type of injury shapes a claim

An injury claim is made up of economic damages, such as medical bills, future care and lost income, and noneconomic damages, such as pain, emotional distress and the loss of activities you used to enjoy. The type of injury decides which of these come into play and how hard each is to prove. Our guides to [types of damages](https://accidentclaimfacts.com/money/types-of-damages/) and [pain and suffering](https://accidentclaimfacts.com/money/pain-and-suffering/) explain each category.

| Feature of the injury | How it can affect the claim |
|---|---|
| Needed a hospital stay or surgery | A longer medical record and larger medical bills |
| Lasting or permanent | Future care and future lost earnings come into play, and doctors or other experts are often needed to describe them |
| Kept you from working | Lost wages so far, and possibly a lasting loss of earning capacity |
| Soft-tissue injury only | Insurers often question these claims, so early and consistent records matter more |
| Made an old problem worse | Usually only the worsening counts, so records from before and after the crash matter |

Future losses need more than a guess. In California, for example, a jury can award future medical expenses only for care the injured person is reasonably certain to need in the future. Other states use similar standards.

A health problem you had before the crash does not end a claim. Under the eggshell plaintiff rule, the person who caused the crash is responsible for the harm it did, even to someone more fragile than average. California's jury instructions, for example, allow damages for the effect of the crash on a physical or emotional condition that it made worse, but not for the old condition itself.

This guide does not estimate what any injury is worth: two people with the same diagnosis can have very different claims.

## No-fault states and the serious injury threshold

In most states, you can claim against the at-fault driver for all of your losses. In 12 states, your own personal injury protection (PIP) coverage pays your medical bills and some lost income first, whoever caused the crash. In return, you can sue the at-fault driver for pain and suffering only if your injury passes a serious injury threshold.

States use two kinds of threshold:

- **Verbal thresholds** describe the injuries that qualify. They are used in Florida, Michigan, New Jersey, New York and Pennsylvania. In New York, a serious injury is one such as death, dismemberment, significant disfigurement, a fracture, or a permanent or significant limitation of use of a body organ, member, function or system. In Florida, the injury must involve significant and permanent loss of an important bodily function, a permanent injury (other than scarring or disfigurement), significant and permanent scarring or disfigurement, or death.
- **Monetary thresholds** look at medical costs, usually alongside a list of serious injuries. They are used in Hawaii, Kansas, Kentucky, Massachusetts, Minnesota, North Dakota and Utah. In Kansas, the medical treatment must be worth at least $2,000, unless the injury is one the law lists, such as a fracture to a weight-bearing bone. In Utah, the line is medical expenses over $3,000, again with listed injuries that qualify on their own.

In Kentucky, New Jersey and Pennsylvania, drivers choose whether to accept the limit on lawsuits when they buy their policy, so the answer depends on the policy.

In these states, the type of injury can decide whether a pain-and-suffering claim exists at all, and whether an injury meets the definition is often argued over using the medical records. Each state guide in our [state-by-state list](https://accidentclaimfacts.com/location/) shows that state's fault system and insurance rules.

## Guides in this section

- [Whiplash](https://accidentclaimfacts.com/injuries/whiplash/): Whiplash is a soft-tissue injury of the neck, most often from rear-end crashes. How it is documented, and why insurers look hard at these…
- [Brain injury (TBI)](https://accidentclaimfacts.com/injuries/traumatic-brain-injury/): Concussion and other traumatic brain injuries from crashes: symptoms that can appear later, the limits of scans, specialist testing and…
- [Spinal cord injury](https://accidentclaimfacts.com/injuries/spinal-cord-injury/): National data on spinal cord injuries from crashes, complete and incomplete injuries, long-term care needs, life care plans and why these…
- [Back and neck injuries](https://accidentclaimfacts.com/injuries/back-and-neck-injuries/): Herniated discs, sprains and spine fractures from crashes; what X-rays and MRIs can show; how claims handle age-related wear and old…
- [Broken bones](https://accidentclaimfacts.com/injuries/broken-bones/): A fracture can bring surgery, time off work and follow-up care. This guide explains how those losses, your medical records and any…
- [Burn injuries](https://accidentclaimfacts.com/injuries/burn-injuries/): Burns are described by how deep they go and how much of the body they cover. Here is how burn care, long recovery, scarring and…
- [PTSD and anxiety](https://accidentclaimfacts.com/injuries/ptsd-after-a-car-accident/): Emotional harm after a crash, including PTSD and anxiety, can be part of an injury claim. This guide covers what official health sources…
- [Wrongful death](https://accidentclaimfacts.com/injuries/wrongful-death/): When a crash takes a life, state law lets the family, or the estate on their behalf, bring a claim. This guide explains who may file, the…
## FAQ

### What are the most common injuries in a car accident?

Neck sprains and strains, often called whiplash, are the injuries most often reported in US auto insurance claims, according to IIHS. Crashes also commonly cause back injuries, broken bones, concussions and other brain injuries, cuts and bruises, and emotional effects such as post-traumatic stress.

### How long after a car accident can injury symptoms appear?

It varies by injury. The CDC says some concussion symptoms may not appear for hours or days, and MedlinePlus notes that pain from a herniated disk often starts slowly. Anyone with new or worsening symptoms after a crash may want to see a doctor and mention the crash.

### Can I still make a claim if I did not see a doctor right away?

Often, yes, but expect the insurer to ask why. A delay gives the insurer room to argue that something else caused the injury. Telling the doctor when each symptom started, and keeping dated notes, helps explain the gap.

### What does maximum medical improvement mean for my claim?

It is the point at which your doctors expect no further recovery. Many claims are valued once you reach it, because that is when the full cost of the injury, including future care, can be described. Your filing deadline keeps running in the meantime.

### Can I make a claim if the crash made an old injury worse?

Generally, yes. Under the eggshell plaintiff rule, the at-fault driver is responsible for the harm the crash did, even to someone with an earlier injury or condition. You usually cannot claim for the old condition itself, only for the extent the crash made it worse.

### Does the type of injury decide how much a claim is worth?

It is one factor among many. The evidence, the length and cost of treatment, any lasting effects, the at-fault driver's insurance limits and each side's share of fault all matter. No honest guide can put a dollar figure on an injury from its name alone.

## Sources

- [National Institute of Neurological Disorders and Stroke, Traumatic Brain Injury (TBI)](https://www.ninds.nih.gov/health-information/disorders/traumatic-brain-injury-tbi) — delayed brain bruising, secondary damage, limits of imaging
- [MedlinePlus, Location of whiplash pain](https://medlineplus.gov/ency/imagepages/19581.htm) — what whiplash is and when pain appears
- [MedlinePlus, Herniated disk](https://medlineplus.gov/ency/article/000442.htm) — pain that starts slowly
- [MedlinePlus, MRI and low back pain](https://medlineplus.gov/ency/article/007493.htm) — MRI shows age-related changes
- [Cornell Legal Information Institute, Wex: eggshell skull rule](https://www.law.cornell.edu/wex/eggshell_skull_rule) — taking the victim as you find them
- [NHTSA, Traffic Safety Facts 2023: A Compilation of Motor Vehicle Traffic Crash Data (DOT HS 813 738), Table 29](https://crashstats.nhtsa.dot.gov/Api/Public/ViewPublication/813738), checked October 29, 2026
- [CDC, MMWR 70(48): Incidence of Nonfatal Traumatic Brain Injury-Related Hospitalizations, United States, 2018](https://www.cdc.gov/mmwr/volumes/70/wr/mm7048a3.htm), checked October 29, 2026
- [National Spinal Cord Injury Statistical Center (UAB), Traumatic Spinal Cord Injury Facts and Figures at a Glance, 2026 SCI Data Sheet](https://sites.uab.edu/nscisc/files/2026/03/Facts-and-Figures-English-03.25.2026-Accessible.pdf), checked October 29, 2026
- [Insurance Information Institute, Background on: No-fault auto insurance](https://www.iii.org/article/background-on-no-fault-auto-insurance), checked October 29, 2026
- [IIHS, IIHS launches new whiplash prevention test (January 27, 2026)](https://www.iihs.org/news/detail/iihs-launches-new-whiplash-prevention-test), checked October 29, 2026
- [CDC, Traumatic Brain Injury & Concussion: Signs and Symptoms](https://www.cdc.gov/traumatic-brain-injury/signs-symptoms/index.html), checked October 29, 2026
- [Justia (2025 Tennessee Code), Tenn. Code Ann. § 28-3-104](https://law.justia.com/codes/tennessee/title-28/chapter-3/part-1/section-28-3-104/), checked October 29, 2026
- [Texas Legislature, Civil Practice and Remedies Code § 16.003(a)](https://statutes.capitol.texas.gov/Docs/CP/htm/CP.16.htm), checked October 29, 2026
- [Judicial Council of California, Civil Jury Instructions (CACI) 2026 edition, No. 3903A](https://courts.ca.gov/system/files/file/judicial_council_of_california_civil_jury_instructions_2026.pdf), checked October 29, 2026
- [New York State Senate, Insurance Law § 5102(d) and § 5104(a)](https://www.nysenate.gov/legislation/laws/ISC/5102), checked October 29, 2026
- [Florida Legislature, Florida Statutes § 627.737(2)](https://www.flsenate.gov/Laws/Statutes/2026/627.737), checked October 29, 2026
- [Kansas Office of Revisor of Statutes, K.S.A. 40-3117](https://www.ksrevisor.gov/statutes/chapters/ch40/040_031_0017.html), checked October 29, 2026
- [Utah Legislature, Utah Code § 31A-22-309(1)(a)](https://le.utah.gov/xcode/Title31A/Chapter22/C31A-22-S309_2026050620260506.html), checked October 29, 2026
- [NHTSA, Overview of Motor Vehicle Traffic Crashes in 2024 (DOT HS 813 791)](https://crashstats.nhtsa.dot.gov/Api/Public/ViewPublication/813791), checked April 1, 2026
- [HHS, HIPAA FAQ: How timely must a covered entity be in responding to individuals' requests for access to their PHI?](https://www.hhs.gov/hipaa/for-professionals/faq/how-timely-must-a-covered-entity-be/index.html), checked June 24, 2016