Recognizing Mild Concussions: Symptoms and When to Seek Care

A mild concussion (mild traumatic brain injury) can occur without immediate awareness. Symptoms may be subtle or delayed, making recognition challenging.

Common Signs and Symptoms

• Headache
• Nausea or vomiting
• Dizziness or balance problems
• Confusion or feeling "foggy"
• Memory loss (amnesia) surrounding the event
• Difficulty concentrating
• Slowed reaction time
• Sensitivity to light or noise
• Mood changes (irritability, sadness)
• Sleep disturbances (drowsiness or insomnia)

Key Points

You can sustain a concussion without a direct head blow—whiplash forces can also cause it. Symptoms may not appear immediately; they can develop over hours or days.

When to See a Doctor

Seek medical evaluation promptly if any of the above symptoms follow a head injury or jolt to the body. Early assessment ensures proper management and reduces risk of complications.