What causes bleeding in the brain?
There are several risk factors and causes of brain hemorrhages. The most common include: • Head trauma. Injury is the most common cause of bleeding in the brain for those under 50. • High blood pressure. This chronic condition can, over a long period of time, weaken blood vessel walls. Untreated high blood pressure is a major preventable cause of brain hemorrhages. • Aneurysm. This is a weakening in a blood vessel wall that swells. It can burst and bleed into the brain, leading to a stroke. • Blood vessel abnormalities. Weaknesses in the blood vessels in and around the brain may be present at birth and diagnosed only if symptoms develop. • Amyloid angiopathy. This is an abnormality of the blood vessel walls that sometimes occurs with aging. It may cause many small, unnoticed bleeds before causing a large one. • Blood or bleeding disorders. Hemophilia and sickle cell anemia can both contribute to decreased levels of blood platelets. • Liver disease. This condition is associated with inc