how does blood haemorrhage occur?
It is actually brain hemorrhage.
Brain hemorrhage is a type of stroke due to the bursting of artery in the brain causing localized bleeding in the surrounding tissues which kills brain cells.
There are several causes of brain hemorrhage but the common ones are as follows:
Head injury: it is the most common cause of brain hemorrhage.
High blood pressure: This chronic condition can, over a long period of time, weakens blood vessel walls. Untreated high blood pressure is a major 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.
Bleeding disorders: such as hemophilia and sickle cell anemia.