In a word, “yes.” The body is remarkably resilient, and after a traumatic impact, adrenaline rushes in and can delay the onset of physical symptoms. This delay can be short or a bit longer-term, so it is wise to see a doctor for a full exam as soon as possible after a wreck. They may discover something that you did not even know was there, and getting immediate treatment can stop your injury from getting worse before you even knew it existed.