A direct blow to the head, such as in a car accident, or a strong jolt can cause brain damage. Even if the impact is mild and CT scans show no abnormalities, severe or prolonged symptoms may appear after a few days or weeks, so caution is required.

• traffic accident
• fall from height
• fall down
• sports injuries
• violence
• infant shaking

• Decreased memory, comprehension, attention/concentration, and emotional instability (higher brain dysfunction)
• Paroxysmal consciousness disorder (epileptic seizures)
• Poor limb movement, dull sensation in limbs (motor paralysis, sensory paralysis)
• No smell, hard to see, no taste, choked with water (cranial nerve palsy)
• Urinary and fecal output is different than before (sphincter disorder)

If you experience any of these symptoms after a traffic accident, please seek medical attention.