A stroke occurs when the supply of blood to the brain is interrupted suddenly or when a blood vessel in the brain bursts, spilling blood into the spaces that surrounds the brain cells. There are two types of strokes:
- Ischemic Stroke: It is blockage of blood vessel connecting to the brain. Ischemic Stroke accounts for approximately 80 % of all Stroke incidents. Either an abnormal narrowing or thickening of the artery wall can also cause ischemic Strokes.
- Haemorrhagic Stroke: It is bleeding into or around the brain. Such strokes account for approximately 20 % of all strokes.