Having wide-ranging physical and psychological effects some signs or symptoms of TBI may appear immediately after the traumatic event, while others may appear days or weeks later.
The signs and symptoms of mild traumatic brain injury may include:
Loss of consciousness for a few seconds to a few minutes No loss of consciousness, but a state of being dazed, confused or disoriented Headache Nausea or vomiting Fatigue or drowsiness Difficulty sleeping Sleeping more than usual Dizziness or loss of balance
Sensory problems, such as blurred vision, ringing in the ears, a bad taste in the mouth or changes in the ability to smell Sensitivity to light or sound.
Cognitive or mental symptoms
Memory or concentration problems Mood changes or mood swings Feeling depressed or anxious
Moderate to severe traumatic brain injuries
Moderate to severe traumatic brain injuries can include any of the signs and symptoms of mild injury, as well as the following symptoms that may appear within the first hours to days after a head injury:
Loss of consciousness from several minutes to hours Persistent headache or headache that worsens Repeated vomiting or nausea Convulsions or seizures Dilation of one or both pupils of the eyes Clear fluids draining from the nose or ears Inability to awaken from sleep Weakness or numbness in fingers and toes Loss of coordination Cognitive or mental symptoms Profound confusion Agitation, combativeness or other unusual behavior Slurred speech Coma and other disorders of consciousness.
Infants and young children with brain injuries may lack the communication skills to report headaches, sensory problems, confusion and similar symptoms. In a child with traumatic brain injury, you may observe:
Change in eating or nursing habits Persistent crying and inability to be consoled Unusual or easy irritability Change in ability to pay attention Change in sleep habits Sad or depressed mood Loss of interest in favorite toys or activities.
Always see your doctor if you or your child has received a blow to the head or body that concerns you or causes behavioral changes. Seek emergency medical care if there are any signs or symptoms of traumatic brain injury following a recent blow or other traumatic injury to the head.
The terms “mild,” “moderate” and “severe” are used to describe the effect of the injury on brain function. A mild injury to the brain is still a serious injury that requires prompt attention and an accurate diagnosis.
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