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The different types of stroke are categorised based on the causes:
Haemorrhagic stroke: when arteries break, generally caused by increases in blood pressure or a previous malformation, and blood is dispersed through the brain. The most frequent malformations are aneurysms (pockets formed by the dilation of an artery’s walls at a specific point) and arteriovenous malformations.
Ischaemic stroke: occurs when the arrival of the blood to an area of the brain is altered due to a blockage in a cerebral or pre-cerebral artery. This causes the brain cells in the affected area to die from lack of oxygen (ischaemia).
