Adrenaline Is a Liar
You step out of the car after the collision. Your heart is pounding. Your hands are shaking. But you do a quick mental inventory and think: I am okay. Nothing hurts. Maybe my neck is a little stiff. You tell the police officer you are fine. You tell your family you are fine. You do not go to the hospital because you feel fine. Then three days later you cannot turn your head. A week later you have blinding headaches. Two weeks later an MRI shows two herniated discs. This is not a rare scenario. This is the most common pattern we see.
Why Serious Injuries Hide
The human body responds to traumatic events by flooding your system with adrenaline and endorphins — the same chemicals that allow soldiers to keep fighting after being shot. These chemicals mask pain, reduce inflammation awareness, and create a temporary feeling of normalcy that can last hours or even days. Meanwhile, the actual damage — to discs, ligaments, blood vessels, and brain tissue — is already done. It just has not announced itself yet.
The Most Commonly Delayed Injuries
Whiplash and cervical spine injuries are the classic delayed-onset injury. The neck absorbs enormous force in a rear-end collision, but the resulting inflammation and disc damage may not produce significant pain for 24 to 72 hours. Concussions and mild traumatic brain injuries can take days to manifest with headaches, confusion, memory problems, and personality changes. Internal bleeding from organ damage may not produce symptoms until enough blood has accumulated to cause dizziness, fainting, or abdominal pain — a potentially life-threatening delay. Herniated discs in the lumbar or thoracic spine may not produce radiculopathy (shooting pain, numbness, weakness in the extremities) until inflammation peaks days after the trauma.
Why the 72-Hour Window Matters for Your Claim
Insurance companies study this pattern and use it against you. If you do not seek medical treatment within 48 to 72 hours of the accident, the adjuster will argue that your injuries were not caused by the crash — that something else happened between the accident and your first doctor visit. It does not matter that the medical science explains exactly why injuries present late. The insurance company will point to the gap in treatment and use it to devalue or deny your claim. This is why every personal injury attorney in Michigan tells you the same thing: see a doctor within 24 to 48 hours of any accident, even if you feel fine.
What to Tell Your Doctor
When you see the doctor, be thorough. Mention every symptom — even minor ones. A "slight headache" at your first visit becomes critical evidence if it develops into a diagnosed concussion. "A little soreness in my lower back" at the ER becomes the documented onset of what turns out to be a herniated disc requiring surgery. Doctors cannot connect your injuries to the accident if they do not know about the symptoms. And insurance companies cannot deny the connection if the medical record documents it from the start.
If you were in a car accident in Michigan and are experiencing symptoms — or even if you are not yet — call Koussan Law at (313) 800-0000. Getting ahead of delayed injuries protects both your health and your legal rights.



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