Vision changes that occur abruptly require urgent evaluation.
4. Severe Headache Without Known Cause
A sudden, intense headache — often described as “the worst headache of my life” — may signal bleeding in the brain.
While not all headaches indicate stroke, a sudden and severe headache, especially if accompanied by other neurological symptoms, requires emergency care.
Phân biệt đột quỵ và đột tử: Cứu người trong tích tắc nhờ hiểu đúng
5. Dizziness or Loss of Balance
Unexpected dizziness, difficulty walking, or lack of coordination may indicate disrupted blood flow to areas of the brain responsible for balance.
Warning signs include:
Sudden unsteadiness
Trouble maintaining posture
Coordination problems
These symptoms are particularly concerning if they occur suddenly.
6. Brief Episodes of Paralysis or Weakness
Temporary paralysis or limb weakness that resolves within hours may represent a transient ischemic attack.
A TIA is often called a “warning stroke.” Approximately one-third of individuals who experience a TIA go on to have a full stroke if untreated.
Immediate medical evaluation is essential.
7. Difficulty Swallowing
Stroke can affect muscles involved in swallowing.
If you notice sudden difficulty swallowing, choking on liquids, or persistent throat weakness, seek medical attention.
8. Sudden Fatigue or Weakness
While fatigue is common for many reasons, sudden unexplained weakness — especially when paired with neurological changes — may signal vascular problems.
In some cases, individuals report unusual exhaustion in the days before a stroke.
9. Transient Memory Loss or Cognitive Changes
Short episodes of confusion, memory lapses, or difficulty concentrating may occur when blood flow to certain brain regions is temporarily reduced.
These symptoms are sometimes subtle and mistaken for stress or fatigue.
10. Sudden Blood Pressure Spikes
Extremely high blood pressure is a major stroke risk factor. Some individuals may experience:
Head pressure
Flushing
