Recognizing these early warning signs can help you or a loved one seek medical support sooner — and early intervention can make a real difference.

Here are 12 signs that may signal the onset of dementia.

1. Short-Term Memory Loss
Misplacing keys, forgetting recent conversations, or repeatedly asking the same questions can be early signs. Occasional forgetfulness happens to everyone, but frequent memory lapses that disrupt daily life warrant attention.

2. Difficulty Performing Familiar Tasks
If once-simple activities — like cooking a regular meal, managing finances, or driving to a familiar place — suddenly become confusing, it may indicate cognitive decline.

3. Language Problems
Struggling to find the right words, substituting incorrect ones, or losing track of a conversation can be early signs of dementia. Communication may feel frustrating or disjointed.

4. Mood and Personality Changes
Noticeable shifts in mood — such as depression, anxiety, irritability, or uncharacteristic aggression — can occur in the early stages. Personality changes may be subtle at first but tend to increase over time.

5. Disorientation
Becoming confused about the time of day, forgetting where you are, or feeling lost in familiar surroundings can point to memory and perception issues linked to dementia.

6. Poor JudgmentUnusual decision-making — like giving away money, neglecting hygiene, or taking unnecessary risks — can signal impaired reasoning and judgment.

7. Misplacing Items
Putting objects in odd places (like keys in the fridge or a wallet in the laundry basket) and being unable to retrace steps to find them is a common early sign.

8. Withdrawal from Social Activities
People experiencing cognitive decline may lose interest in hobbies, social events, or work activities they once enjoyed. Fatigue, confusion, or embarrassment over memory lapses can contribute to this withdrawal.

9. Trouble with Planning or Problem-Solving
Tasks that require focus, organization, or working with numbers — such as balancing a checkbook or following a recipe — may become difficult.

10. Visual and Spatial Difficulties
Dementia can affect vision and perception, making it harder to read, judge distances, or distinguish colors and contrasts. This may increase the risk of falls or driving errors.

11. Problems with Speaking or Writing
Repeating phrases, losing one’s train of thought mid-sentence, or struggling to join a conversation are all red flags that communication skills may be declining.

12. Loss of Initiative
A person may become unusually passive, needing reminders or encouragement to engage in everyday tasks or interactions.