Loss of balance is a potential indicator of a traumatic brain injury, states Mayo Clinic. Other physical signs include loss of consciousness, lasting anywhere from a few seconds to few minutes, disorientation, dizziness, headache, fatigue and changes in sleep patterns. Nausea and vomiting may also occur.
In additional to physical symptoms, there may be sensory or cognitive signs that a person has suffered a traumatic brain injury, notes Mayo Clinic. Sensory issues that can arise include blurry vision, light or sound sensitivity, ringing in the ears or changes to one's sense of smell. Patients also sometimes report a bad taste in their mouths. Cognitive indicators of a traumatic brain injury may include depression, anxiety, mood swings, memory changes or concentration difficulties. Symptoms can appear directly after the brain trauma or days to weeks after, so a lack of signs is not a reliable indicator of whether medical attention is necessary.
Further symptoms may manifest in individuals who suffer traumatic brain injuries that are moderate to severe, explains Mayo Clinic. Loss of consciousness that persists for several minutes or hours may be indicative of a more serious injury. Seizures, convulsions, clear fluids coming out of the ears or eyes, and dilation in one or both pupils are other physical indicators that a brain injury is more serious. Uncharacteristic agitation or combativeness, coma and slurring words are among the cognitive signs of a moderate or severe traumatic brain injury.