# Soft-tissue injury

> A soft-tissue injury harms muscles, ligaments or tendons, not bones, as with whiplash. Why these injuries are common in crash claims and often disputed.

Canonical page: https://accidentclaimfacts.com/glossary/soft-tissue-injury/  
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

A soft-tissue injury is damage to muscles, ligaments or tendons rather than to bones. MedlinePlus, the National Library of Medicine's health site, describes a sprain as a stretched or torn ligament (the tissue that connects bones at a joint) and a strain as a stretched or torn muscle or tendon (the tissue that connects muscle to bone). Whiplash, a sprain or strain of the neck, is the best-known example.

## In a car accident claim

These injuries are very common. The Insurance Institute for Highway Safety describes neck sprains and strains as the most frequently reported injuries in U.S. auto insurance claims.

They are also often disputed. There is usually less objective proof than with a broken bone, so the claim leans on the medical record: when symptoms started, what the doctor found on exam, the treatment and how long it lasted. Gaps in treatment or a pre existing condition are common points of argument. In some no-fault states, a soft-tissue injury may not meet the serious injury threshold needed to sue for pain and suffering.

The guides to [whiplash](https://accidentclaimfacts.com/injuries/whiplash/), [back and neck injuries](https://accidentclaimfacts.com/injuries/back-and-neck-injuries/) and [medical records](https://accidentclaimfacts.com/claim-process/medical-records/) explain how these injuries are documented. Only a doctor can diagnose an injury.

## Example

> **Example:** A driver is rear-ended at a stoplight and feels neck stiffness the next morning. A doctor diagnoses a neck strain and prescribes physical therapy. The adjuster later questions the claim because no fracture showed on the X-ray, so the therapy notes and the doctor's exam findings become the main evidence.

## Related terms

- [Pre-existing condition](https://accidentclaimfacts.com/glossary/pre-existing-condition/)
- [Serious injury threshold](https://accidentclaimfacts.com/glossary/serious-injury-threshold/)
- [Noneconomic damages](https://accidentclaimfacts.com/glossary/noneconomic-damages/)

## FAQ

### Is whiplash a soft-tissue injury?

Yes. Whiplash is a sprain or strain of the neck, which makes it a soft-tissue injury. The [whiplash guide](https://accidentclaimfacts.com/injuries/whiplash/) covers how it is diagnosed and documented.

### Why do insurers push back on soft-tissue claims?

Because there may be little to see on imaging, insurers often question how serious it is or whether the crash caused it. Consistent medical records from soon after the crash are usually the strongest answer.

## Sources

- [MedlinePlus, Sprains and strains](https://medlineplus.gov/sprainsandstrains.html) — definitions of sprains and strains, ligaments and tendons
- [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