Many serious injuries, like whiplash, TBI, and internal injuries, have delayed symptoms. Whiplash peaks 24-72 hours later; TBI and internal issues can take days to surface. Always seek immediate medical evaluation after an accident, even if you feel fine. If symptoms appear later, see a doctor promptly and report the collision. Insurance companies dispute delayed treatment, claiming injuries are minor or unrelated. We use medical experts to counter this. Document symptom onset and progression. Never delay treatment, hoping symptoms resolve, as this harms your health and your claim.