Intracranial hemorrhages (bleeding within the brain) are unfortunately fairly common. Patients on blood thinners, those with weakened arteries and uncontrolled high blood pressure, and trauma patients, are particularly vulnerable. Sometimes these hemorrhages can be treated with watchful waiting (allowing the brain to remove the blood itself). Sometimes surgery is needed to remove the pressure on surrounding brain caused by a large clot. Brain hemorrhages are a form of "stroke" and often leave a patient with neurological problems.