Health experts are warning that silent strokes, also known as covert brain infarctions, can occur without noticeable symptoms while still causing damage to the brain.
Unlike major strokes that often lead to sudden weakness, speech problems, or facial drooping, silent strokes usually develop quietly and may only be discovered during brain scans performed for unrelated medical conditions.
Medical researchers say silent strokes happen when a blood vessel in the brain becomes blocked, reducing blood flow and damaging brain tissue. Because the affected area may control less noticeable functions, many people experience no obvious warning signs.
Studies suggest silent strokes are increasingly common among older adults, particularly people over the age of 50 and those with high cardiovascular risk factors.
Although symptoms are often absent, some people may later experience mild memory loss, difficulty balancing, reduced thinking ability, mood changes, or slight mobility problems that are sometimes mistaken for normal ageing.
Doctors frequently identify silent strokes through MRI or CT scans after patients seek treatment for issues such as headaches, dizziness, or cognitive concerns. Brain scans may reveal small areas of damage, scarring, or tiny blood vessel changes linked to previous strokes.
Health experts say conditions such as high blood pressure, high cholesterol, diabetes, heart disease, smoking, obesity, and irregular heartbeat disorders can increase the risk of silent strokes.
Atrial fibrillation, a condition that causes irregular heart rhythms, has also been strongly linked to an increased risk of stroke in older adults.
Medical professionals warn that silent strokes should not be ignored because they may increase the likelihood of future major strokes, progressive brain damage, mild cognitive impairment, and early dementia.
Treatment often focuses on reducing future stroke risks through medications and lifestyle changes. Doctors may prescribe blood-thinning drugs, cholesterol-lowering medications, or blood pressure treatments depending on the patient’s condition.
Health specialists also recommend regular exercise, healthy eating, weight management, avoiding smoking, limiting alcohol intake, and routine medical checkups to help lower stroke risk.
Experts advise people to seek medical attention if they notice sudden balance problems, dizziness, unusual clumsiness, memory issues, or temporary weakness, even if the symptoms disappear quickly.