Signs and symptoms of mild traumatic brain injury and concussion
Symptoms may appear up to 48 hours after an incident that may have caused a mild traumatic brain injury (MTBI) or concussion. Symptoms can vary from one person to another, even in situations where the context and the injury are similar.
Urgent warning signals
Warning signs may appear during this period. In such cases, an evaluation at a hospital emergency department is required as quickly as possible.
Symptoms often experienced by the participant or observed by others present
Headaches
Fatigue, sleep difficulties
Nausea
Vomiting
Dizziness, vertigo
Feeling slowed down
Concentration or memory problems
Blurred vision
Sensitivity to light or noise
An unusual high level of irritability, sadness, etc.
Nervousness, anxiety
Neck pain
Trouble remembering words, or repetitive speech
This list is not exhaustive and other symptoms may be observed.