What to know
A concussion can happen when a collision jolts the head and brain, even without striking the head against a window or steering wheel. It is a type of traumatic brain injury that needs medical assessment. Testing and the history of the injury help guide diagnosis; a brain scan is not required in every case. CDC concussion overview
Changes to watch for
Possible symptoms include headache, dizziness, nausea, light sensitivity, trouble concentrating, memory difficulties, mood changes, or disrupted sleep. Some appear immediately, while others emerge hours or days later. A family member may notice changes the injured person has missed. CDC symptom guide
Tell the clinician about practical changes: losing your place while reading, struggling to follow a conversation, or feeling unusually overwhelmed by routine tasks. Explain when these difficulties began and how they differ from your usual functioning.
When to seek emergency care
Call 911 or seek emergency-department care for a worsening headache that will not settle, repeated vomiting, seizure, slurred speech, increasing confusion, new weakness, unequal pupils, or difficulty waking. These signs can indicate a more serious injury. CDC danger signs
What evaluation can involve
A healthcare professional may assess thinking, memory, attention, and symptoms. CT may be used when bleeding is a concern, but a normal scan does not by itself exclude concussion. Tell the clinician about previous concussions and current medications. CDC testing and diagnosis
Ask for a written plan explaining follow-up, warning signs, and restrictions. It can help to bring someone who has observed your symptoms, particularly if recalling details is difficult.
Returning to normal activities
Recovery should be guided by symptoms and medical advice. CDC guidance supports a short period of rest followed by a gradual return to light activity. Reduce an activity if it worsens symptoms, and avoid another head injury. Ask specifically about driving, work, exercise, and operating machinery. Contact your clinician if symptoms persist or worsen. CDC recovery guidance
Next steps
For non-emergency follow-up, learn about SpineLUX neurology and brain injury care or call 972-920-9111. Outpatient care does not replace emergency evaluation.
Common questions
Frequently asked questions
Does a normal CT scan mean I did not have a concussion?+
No. CT addresses questions such as bleeding; concussion assessment includes the clinical history and examination.
When can I drive again?+
Ask the treating clinician for individualized instructions rather than choosing a return date based only on how much time has passed.
What are the signs of a concussion after a car accident?+
Signs can include headache, dizziness, nausea, light sensitivity, trouble concentrating, memory difficulties, mood changes, or disrupted sleep. They may appear immediately or hours to days later, and a concussion can follow a jolt even without striking the head. Call 911 or seek emergency care for a worsening headache, repeated vomiting, seizure, slurred speech, increasing confusion, new weakness, unequal pupils, or difficulty waking. A normal scan does not by itself exclude concussion.