Hidden Red Flags: 10 Subtle Signs of Dementia You Need to Recognize Now

5. Struggling with Abstract Thinking

Concepts that seem like second nature—like reading a clock or balancing a checkbook—may slowly become confusing when dementia is in the picture. This isn’t about being “bad with numbers,” but about losing touch with ideas that don’t have a direct, physical reference. You might notice someone hesitating when asked to calculate a tip, getting muddled with directions like “before” and “after,” or having trouble planning their schedule. Even everyday sequencing—like organizing steps to get dressed—can feel surprisingly complex. If a person suddenly avoids board games involving strategy or number play, or hesitates with familiar technology (like using the microwave or phone), it may be a sign that abstract thinking is growing more challenging. These subtle shifts can come across as ordinary frustration or even disinterest. But if they show up together with other changes on this list, they may indicate that the brain needs extra support. Opening the door to shared problem-solving can make daily tasks feel less daunting.

6. Issues with Visual or Spatial Perception

You might notice small accidents starting to add up—a favorite mug missing its place on a shelf, tripping over carpets that never seemed an issue before, or misjudging the curb while out for a walk. Early dementia can affect the brain’s visual and spatial processing, making everyday navigation trickier and even a little startling. This isn’t about eyesight itself, but about how the brain interprets what the eyes are seeing. If someone seems more hesitant on the stairs, has a growing number of fender-benders, or starts bumping into corners, these could be gentle clues. Moving objects from familiar places, dropping items, or struggling to judge how far the bed is from the chair—these are all signs worth noting. Car trips may suddenly feel confusing, with once-confident drivers feeling uneasy or making navigation mistakes. If you’re spotting a new pattern of “unexplained” minor mishaps, a supportive check-in could help pinpoint what’s really going on behind the scenes.