Lacunar infarcts are very small strokes β under 1.5cm β caused by blockage of tiny arteries deep in the brain. By age 70 or 80, it's more unusual NOT to see them. They're a marker of vascular aging.
A single small infarct may have caused no noticeable symptoms at the time. But accumulate enough, and they can contribute to cognitive decline and walking difficulties.
Ischemic foci or white matter changes are areas damaged by reduced blood flow over time β not enough for a full stroke, but enough to show on imaging.
The key is risk factor management: blood pressure control (under 130/80), blood sugar control for diabetics, lipid management, anti-platelet therapy if prescribed, and lifestyle changes.
Finding these on a scan isn't a reason to panic β it's a reason to act. These are signals from the body saying something needs attention. Aggressively managing risk factors prevents future damage.