You may have heard terms like “ischemic stroke” or “hemorrhagic stroke” often, but have you ever thought what would happen if it affects someone close to you? The reality is—if a stroke is not treated in time, the consequences can be devastating, leading to disability, paralysis, or worse.
Understanding the Difference: Stroke From Blockage vs. Stroke From Rupture
Before talking about the risks that can cause paralysis, it’s important to understand the two main causes of stroke:
1. Ischemic Stroke (Blocked or Narrowed Blood Vessel)
This occurs when arteries in the brain become narrowed or blocked. The artery walls harden and fatty deposits build up, gradually narrowing the passage. This reduces blood flow to the brain. People with heart disease are also at risk, as blood clots from the heart can travel through the bloodstream and block a cerebral artery—cutting off blood supply to parts of the brain.
2. Hemorrhagic Stroke (Ruptured Blood Vessel)
This happens when a blood vessel in the brain bursts, causing bleeding into or around the brain. There are two main types:
- Bleeding into brain tissue: The blood presses on the brain and damages nerve cells, causing neurological symptoms.
- Bleeding into the brain’s protective membranes (usually due to an aneurysm): This often presents with a sudden and severe headache—a red flag that needs urgent care.
When the Brain Lacks Blood, Paralysis Can Strike Instantly
It doesn’t matter whether the brain is deprived of blood for minutes or hours—the longer the delay, the greater the damage. The brain cells responsible for movement start dying, and the brain loses its ability to control muscles. The result? Sudden weakness or loss of function in the arms and legs, sometimes on one side, sometimes the whole body—depending on the severity.
In hemorrhagic strokes, blood pools in the brain, increasing pressure and causing rapid deterioration. Without timely treatment, a person may fall into a coma and eventually become completely unresponsive—a vegetative state.
