Common Symptoms of TBI

  • Persistent headaches
  • Dizziness
  • Memory problems (short- & long-term)
  • Confusion, cognitive impairment (process & decisions)
  • Sensitivity to light
  • Sensitivity to sound
  • Mood changes (depression, anxiety)
  • Emotional instability
  • Difficulty concentrating
  • Nausea/Vomiting
  • Fatigue
  • Poor balance
  • Blurred vision
  • Sleep disturbances
  • Tinnitus (ringing in the ears)
  • Changes in taste or smell
  • Slurred speech
  • Seizures
  • Pupil dilation

CLICK TO READ MORE about Location of Brain Injury, Symptoms and Targeted Self-Rehab Therapies for the TBI

Less Common Symptoms of TBI

  • Paranoia or extreme anxiety
  • Hallucinations
  • Personality changes
  • Depersonalization, self-perception, emotional regulation
  • Intrusive thoughts, emotional control
  • Unexplained anger or irritability
  • Obsessive-compulsive behaviors as coping mechanism
  • Emotional numbness
  • Unusual sensory experiences .
  • Memory lapses
  • Difficulty recognizing familiar faces
  • Unexplained fatigue from cognitive & physical exertion
  • Changes in sexual behavior due to hormonal imbalance or brain damage
  • Difficulty with spatial awareness
  • Unusual taste or smell
  • Difficulty with time perception
  • Unexplained physical symptoms
  • Sleep disturbances
  • Hypoglycemia-like symptoms
  • Feeling disconnected from reality

Childish and Inappropriate Behavior

  • Impulsivity
  • Lack of inhibition
  • Emotional outbursts
  • Difficulty with social cues

Symptoms are ICD taken from the 2025 ICD code book which is used for coding diagnoses and is maintained by the World Health Organization (WHO), and from the 2025 International Classification of Functioning, Disability and Health (ICF) which is a framework developed by the World Health Organization (WHO) for describing and organizing information on functioning and disability.

Symptoms are ICD taken from the 2025 ICD code book which is used for coding diagnoses and is maintained by the World Health Organization (WHO), and from the 2025 International Classification of Functioning, Disability and Health (ICF) which is a framework developed by the World Health Organization (WHO) for describing and organizing information on functioning and disability.