What are the symptoms of traumatic brain injury?


Quick Answer

According to the Mayo Clinic, traumatic brain injury may have a number of physiological and psychological symptoms. Physiological effects of mild traumatic brain injury include loss of consciousness, dizziness, disorientation, confusion, headache, fatigue, difficulty sleeping or oversleeping. Psychological symptoms include sensory problems, sensitivity to light or sound, memory or concentration problems, mood swings or depression.

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What are the symptoms of traumatic brain injury?
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Full Answer

The Centers for Disease Control and Prevention states that moderate to severe traumatic brain injury may produce more dangerous symptoms, including death. Traumatic brain injury is caused by a sudden forceful blow to the head.

The CDC explains that there are two types of severe traumatic brain injury: closed and penetrative. Closed traumatic brain injury occurs when an object forcefully causes the brain to be jarred within the skull. Penetrating traumatic brain injury occurs when an object breaks through the skull, directly colliding with the brain and injuring it. Symptoms of severe traumatic brain injury include attention and memory problems, damaged motor functions, sensory problems, impaired speech, severe emotional issues or personality changes. Extreme headaches, vomiting or nausea, convulsions or seizures, the inability to awaken from sleep, slurred speech, weakness or numbness and dilation of one or both pupils are all possible symptoms of severe traumatic brain injury, according to the National Institute of Neurological Disorders and Stroke.

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