Signs and symptoms of a brain injury may occur as late as which time after the injury?

• A. Immediately after the injury
• B. 1 week after the injury
• C. Within 24 hours after
• D. 1 month after

Answer: (B)

After a head injury, signs of brain injury aren’t always immediate. Bleeding or swelling inside the skull can develop over time, gradually affecting brain function. Because of that delayed progression, symptoms may not appear until hours or days after the injury—and can even show up as late as about a week later. This is why a week-long window is the key idea here.

Keep monitoring for any new or worsening signs over the next several days. If new symptoms emerge or existing ones worsen—such as a worsening or new headache, confusion, dizziness, vomiting, sleepiness that doesn’t improve, weakness or numbness, seizures, or unequal pupils—seek medical evaluation promptly. These changes can indicate evolving brain injury and need professional assessment.