You might develop signs and symptoms of an intracranial hematoma right after a head injury, or they may take weeks or longer to appear. You might seem fine after a head injury. This period is called the lucid interval. Over time, pressure on your brain increases, producing some or all of the following signs and symptoms:  Headache that gets worse Vomiting Drowsiness and progressive loss of consciousness Dizziness Confusion Unequal pupil size Slurred speech Loss of movement (paralysis) on the opposite side of the body from the head injury  As more blood fills your brain or the narrow space between your brain and skull, other signs and symptoms may appear, such as:  Lethargy Seizures Unconsciousness 
develop signs symptoms intracranial hematoma right head injury  may take weeks longer appear  fine head injury  period called lucid interval  time  pressure brain increases  producing following signs symptoms:  headache worse vomiting drowsiness progressive loss consciousness dizziness confusion unequal pupil size slurred speech loss movement (paralysis) opposite side body head injury  blood fills brain narrow space brain skull  signs symptoms may appear  as:  lethargy seizures unconsciousness 
intracranial hematoma