Whiplash: Symptoms, Causes & Physical Therapy Treatment
Updated July 20261 minute read
Whiplash is a neck injury caused by a sudden back-and-forth jolt of the head, most often in a car crash. It causes neck pain and stiffness, headaches, and sometimes shoulder or upper-back pain, often appearing hours after the event. Most people recover well, and the best evidence supports staying active and starting gentle movement early rather than resting in a collar. Significant trauma should always be medically evaluated first.
What is whiplash?
Whiplash describes a strain of the neck's soft tissues from rapid acceleration-deceleration. After a significant collision, a medical evaluation comes first to rule out fracture or serious injury.
Symptoms
Common features are neck pain and stiffness, headaches (often from the base of the skull), reduced motion, and sometimes shoulder, upper-back, or arm symptoms. Symptoms can take a day or two to fully appear.
What causes it / risk factors
Rear-end car collisions are the classic cause; sports impacts and falls can also do it. Higher initial pain and anxiety can slow recovery, which is why reassurance and early movement matter.
How it's diagnosed
After serious trauma is ruled out medically, whiplash is diagnosed clinically. Imaging is guided by injury severity and red flags.
Physical therapy treatment
What a PT does. Your therapist reassures you that movement is safe, restores motion early, and progressively rebuilds strength and confidence. Exercises & progression (overview). Early gentle range-of-motion, then neck and shoulder-blade strengthening and graded return to activity. Active care and reassurance beat collars and rest. Recovery timeline. Many people recover within several weeks, though some symptoms can linger longer.
Treatment options compared
Early active PT is first-line. Short-term pain relief helps. Prolonged collar use is discouraged because it can slow recovery.
Red flags
Seek urgent care after the injury for severe neck pain with midline tenderness, arm or leg weakness or numbness, hand clumsiness, balance problems, or loss of bladder/bowel control.
Frequently asked questions
Sources (3)
- Blanpied PR, et al. Neck Pain: Revision 2017 (APTA clinical practice guideline). J Orthop Sports Phys Ther. 2017. — PubMed
- MedlinePlus: Neck Injuries and Disorders. — NIH/MedlinePlus
- StatPearls: Cervical Sprain. — StatPearls (NCBI Bookshelf)
This article is for education only and isn't medical advice. Always talk to a licensed clinician about your specific situation.