Why does my neck hurt days after a car accident?
Delayed neck pain after a car accident is caused by inflammation, muscle guarding, and micro-tears in the cervical ligaments and discs that take 24 to 72 hours to swell and become symptomatic. Adrenaline at the scene masks the early signs. An exam in the first week identifies the source, whiplash, facet joint irritation, or disc involvement, and starts treatment before the tissues stiffen.