15 Warning Signs of Dementia to Detect the Symptoms at Early Stages

Close-up image of an elderly person's eye, symbolizing the vigilance needed to spot the 15 warning signs of dementia


Dementia is a broad term that encompasses various conditions related to cognitive decline. It is crucial to recognize the early signs of dementia as it allows for better management and care. In this blog, we aim to provide you with an overview of the 15 main warning signs of dementia and emphasize the importance of early recognition in improving the quality of life for individuals affected by this condition.

Memory loss, confusion about time and place, problems with decision-making abilities, problems with speaking or writing, unusually poor judgement, not paying attention to personal care and hygiene, mood changes, misplacing things, and difficulties in performing daily tasks are among the top early warning signs of dementia.  

The blog aims to provide a comprehensive and easy-to-understand guide on the warning signs of dementia.

What is Dementia?

Imagine waking up one day and not being able to recognize your loved ones or remembering where you live. Imagine having trouble remembering simple words or how to conduct once-routine daily tasks. This is the reality for millions of individuals living with dementia around the world. Dementia is a general term describing a decline in cognitive abilities, such as memory loss, reasoning, and communication skills, that is severe enough to interfere with daily life. According to Center for Disease Control and Prevention, dementia affects an individual’s ability to think, remember, and make decisions. 

It is crucial to recognize that dementia is not a natural aspect of aging. This understanding has significant implications for how we perceive and care for dementia patients. It promotes early diagnosis, empathy, mental health, and stigma reduction, to the benefit of those with the condition as well as their caregivers. In addition, it directs research and resources towards the development of improved treatments and, ultimately, a cure. Adopting this knowledge is crucial to nurturing a society that promotes the dignity and well-being of dementia-affected elders.

In this article, we will examine what dementia is, its various forms, and the common signs and symptoms that can be used to diagnose this debilitating condition.

Mood change can be a sign of dementia
impaired memory can be a sign of dementia

Notable Facts About Dementia

Over 55 million people worldwide currently live with dementia, and this number is expected to almost double every 20 years, reaching nearly 140 million by 2050.

Over 60% of individuals with dementia reside in low- and middle-income countries, highlighting the disproportionate impact on these regions.

The number of new dementia cases each year is staggering, with nearly 10 million diagnoses globally.

Dementia imposes a staggering cost on the global economy, with an estimated 1.3 trillion US dollars spent in 2019 alone. This underscores the need for effective strategies to manage and reduce these costs.

The 15 Main Warning Signs of Dementia

1: Impaired Memory

Memory impairment is the defining characteristic of dementia, and it manifests in a variety of ways that profoundly impact the lives of those with this condition. One of the most prominent symptoms is the inability to retain recently acquired information. This short-term memory impairment is frequently one of the first warning indicators observed by caregivers and loved ones. Patients with dementia may have difficulty recalling what they ate for breakfast, the names of acquaintances they just encountered, or even where they placed frequently used items such as their keys and glasses. Not only can these lapses in short-term memory be aggravating, but they can also be disorienting for dementia patients and those around them.

This memory impairment’s significance cannot be exaggerated. It interferes with daily existence in multiple ways. Simple responsibilities, such as remembering appointments or managing finances, become difficult. When patients struggle to recall recent conversations or repeatedly pose the same questions, communication is hampered. In addition, it poses safety concerns, as individuals may forget to perform essential duties such as turning off appliances or locking doors, putting their safety at risk. The emotional toll is substantial, causing both patients and caregivers to experience frustration and confusion. Understanding how memory loss manifests in dementia patients highlights the importance of early detection and compassionate care for those affected by this condition.

2 Significant Changes in Mood

Significant changes in mood, such as pronounced mood swings and unexplained alterations in demeanor have been identified as one of the early symptoms of dementia. 

Mood swings associated with dementia can manifest in various ways. One common symptom is a sudden change in mood from calm to agitation or irritability without any apparent reason. Individuals may become increasingly prone to frustration, anger, or sadness. What sets these mood swings apart is their intensity and frequency, which tend to be more pronounced than typical emotional fluctuations experienced by most people.

Moreover, unexplained changes in demeanor can be indicative of underlying cognitive decline. Individuals may exhibit alterations in personality traits or behaviors that are out of character for them; for example, someone who was typically reserved may become excessively outgoing or vice versa. These shifts are significant because they occur outside the usual range of emotional responses expected from day-to-day stressors or life events.

Recognizing the contrast between these atypical emotional fluctuations and typical variations becomes crucial when assessing potential warning signs of dementia. While everyone experiences occasional mood changes, those associated with dementia tend to be more pervasive and persistent over time. Additionally, these shifts often occur without an obvious trigger or explanation.

By understanding the distinction between atypical emotional fluctuations and normal variations, healthcare professionals and caregivers can take proactive steps towards diagnosis, intervention, and support for individuals experiencing these symptoms. Early identification is key to providing the necessary care and resources needed to enhance the quality of life for both individuals living with dementia and their loved ones.

3 Struggling with Abstract Thinking

Dementia can take a toll not just on memory but also on higher cognitive functions such as abstract thinking, planning, and problem-solving. These difficulties with complex tasks often serve as red flags for individuals who may be at the onset of dementia. Recognizing these warning signs is crucial in order to provide appropriate support and intervention.

Abstract thinking involves the ability to understand concepts that are not concrete or easily observed. In cases of dementia, individuals may struggle with tasks that require this type of thinking, such as making plans, organizing schedules, or solving puzzles. They may have difficulty grasping new ideas or concepts and struggle to find solutions to problems they previously handled with ease.

4: Difficulties Performing Daily Tasks

One of the early hint of dementia is difficulty in executing routine activities that were once effortless. Mundane tasks like preparing meals, dressing, or even basic hygiene can become increasingly challenging. These difficulties are not merely due to physical limitations but are indicative of cognitive impairments.

When individuals begin to struggle with routine activities, it can be a cause for concern. These challenges may include forgetting the steps involved in completing a task, misplacing objects necessary for completion, or being unable to follow familiar routines. For example, someone with dementia may forget how to tie shoelaces or have trouble following a recipe they have made countless times before. These difficulties in executing daily tasks can lead to frustration and loss of independence for individuals affected by dementia.

5: Disorientation and Confusion

Disorientation and confusion are common early symptoms of dementia that can manifest in various ways. Individuals experiencing these symptoms may find themselves getting lost even in familiar surroundings or having difficulty remembering specific dates, such as birthdays or anniversaries.

One example of disorientation is when a person with early-stage dementia becomes disoriented while navigating familiar routes, such as forgetting how to get back home after taking a short walk around the neighborhood. They may also struggle to recognize familiar landmarks or become confused about their current location.

In addition, individuals with dementia may experience confusion when it comes to time and dates. They may forget important appointments, repeatedly ask about the day or month, or confuse past events with present ones. These instances of disorientation and confusion can have a significant impact on daily life and should not be ignored.

6: Misplacing Things

Dementia can affect the ability to keep track of even the smallest and daily routine items. Individuals with dementia or alzheimer’s disease may consistently put items in unusual places, leading to frustration and confusion when they cannot locate them later on. Examples of unusual places where items may be found include placing car keys in the refrigerator, putting a wallet in the pantry, or storing important documents in a sock drawer. These unexpected locations are often an indication of memory lapses and impaired cognitive function.

The act of misplacing things becomes more concerning when it happens frequently and without logical explanation. If you or a loved one experiences this type of forgetfulness on a regular basis, it may be worth seeking medical advice to evaluate for signs of dementia.

Remembering where objects are typically kept and retracing steps can be helpful strategies to mitigate the impact of misplacement caused by memory deficits. However, it’s important to recognize that consistent misplacement of items is an early warning sign that should not be ignored.

7: Communication Problems

As dementia progresses, individuals may experience challenges in finding the right words, expressing themselves clearly, or understanding others. These communication problems can lead to frequent misunderstandings and frustration for both the person with dementia and their loved ones.

Impaired language skills can manifest in various ways, such as struggling to recall familiar words or names, using incorrect or made-up words, repeating questions or statements, or having difficulty following conversations. These changes can significantly impact a person’s ability to effectively communicate their thoughts and feelings.

8: Questionable Decision-Making

Questionable decision-making is another warning sign of dementia that can have significant implications on a person’s life. As dementia progresses, individuals may exhibit poor judgment and make choices that are out of character for them. This could include making risky financial decisions, falling victim to scams or fraud, neglecting personal hygiene or safety precautions, or engaging in inappropriate behaviors.

The decline in cognitive abilities and reasoning skills associated with dementia can impair a person’s ability to weigh the consequences of their actions and make sound judgments. They may struggle to recognize dangerous situations or evaluate the potential risks involved.

9: Major Personality Shifts

Dementia can cause significant changes in a person’s character, temperament, and behavior. These shifts may be subtle at first but can become more pronounced as the disease progresses. Personality changes can manifest in various ways. For example, an individual who was once outgoing and sociable may become withdrawn and isolated. They might exhibit sudden mood swings, displaying increased irritability, agitation, or even aggression. In some cases, a person may lose interest in their hobbies or activities that previously brought them joy. 

These personality shifts occur due to the damage and deterioration of brain cells associated with dementia. The specific nature of these changes can vary depending on the individual and the type of dementia they are experiencing. Recognizing major personality shifts can help loved ones or caregivers identify early signs of dementia and seek appropriate medical attention for diagnosis and care.

10: Withdrawal from Social Activities or Work

People with dementia may gradually withdraw from social interactions and commonly lose interest in activities they once enjoyed. They may demonstrate a decreased desire to participate in group gatherings, outings, or events. In some cases, this withdrawal can extend to their work life as well. They may have trouble completing tasks efficiently, struggle with decision-making, or find it challenging to focus and concentrate.

The withdrawal can be attributed to a combination of factors related to the impact of dementia on cognitive abilities and changes in behavior and mood. It’s important to note that this withdrawal should not be mistaken for simple introversion or a preference for solitude; rather, it is a significant change from the individual’s previous patterns of engagement.

11: Poor Judgement

Poor judgment can manifest in different ways, such as risky behavior and impulsive decision-making. Risky behavior involves engaging in activities that pose a high level of risk, both physically and emotionally, without regard for the potential consequences. This can include reckless driving, excessive spending, or participating in dangerous activities. These actions display a lack of consideration for personal safety and well-being.

Additionally, impulsive decision-making is characterized by acting on immediate desires without taking the time to consider the long-term implications or weighing the pros and cons of a situation. Individuals experiencing poor judgment may make snap decisions without thoroughly assessing the potential outcomes. This can lead to regrets or unfavorable outcomes down the road.

12: Repetitive Compulsive Behavior

Repetitive and compulsive behavior can be another warning sign that indicates potential issues with decision-making and judgment. When individuals engage in repetitive and compulsive behaviors that are out of character, it may be a cause for concern.

Repetitive behavior refers to engaging in the same actions or rituals over and over again, often without any apparent reason or purpose. This can include actions like excessive handwashing, repeatedly checking things, or needing to arrange items in a particular order. These behaviors can consume a significant amount of time and energy, interfering with daily life.

Compulsive behavior involves feeling an uncontrollable urge to perform certain actions in response to persistent thoughts or fears. For instance, individuals may feel compelled to count numbers or engage in specific rituals to alleviate anxiety or prevent perceived negative outcomes. These behaviors are often driven by internal distress and can create significant disruption in one’s life.

When repetitive and compulsive behaviors become pervasive and start affecting an individual’s ability to lead a normal and healthy life, it is crucial to seek guidance from healthcare professionals who specialize in mental health. They can conduct a thorough assessment, diagnose any underlying conditions such as obsessive-compulsive disorder (OCD), and provide appropriate treatment options.

13: Neglect of Personal Care and Safety

Neglecting personal care involves a decline in taking proper care of oneself, such as not bathing regularly, wearing dirty or mismatched clothes, or neglecting oral hygiene. This change in behavior may also include neglecting grooming practices like not brushing hair or shaving.

Another aspect to consider is the neglect of safety precautions. This can manifest in various ways, such as forgetting to lock doors or windows, leaving the stove on unattended, or failing to use seatbelts when driving. These lapses in judgment regarding personal safety can potentially put the individual at risk and need timely attention for treatment.

14: Inability to Concentrate or Plan

One warning sign that should not be overlooked is the inability to concentrate or plan effectively. When a person’s ability to focus on tasks and organize their thoughts becomes compromised, it could signify an underlying issue that needs attention.

If someone finds it increasingly difficult to concentrate, they may experience frequent lapses in attention during conversations, meetings, or while performing daily tasks. They might struggle to stay focused for extended periods of time and may appear easily distracted or forgetful. This can significantly impact their productivity and overall work performance. Additionally, the inability to effectively plan can be indicative of a problem. Individuals might struggle with organizing their schedules, setting realistic goals, or breaking down complex tasks into manageable steps. They may exhibit a lack of motivation or initiative when it comes to making decisions or initiating new projects.

The consequences of these difficulties in concentration and planning extend beyond work-related tasks. Social activities and hobbies that require mental focus and organization may also be affected. Withdrawal from such activities may occur as individuals find them increasingly challenging and exhausting.

It is important to note that experiencing occasional difficulty with concentration or planning can happen to anyone due to various factors such as stress or fatigue. However, if these difficulties persist over an extended period of time and significantly interfere with daily functioning, it may be necessary to seek professional help in order to address any underlying causes contributing to this withdrawal from social activities, hobbies, or work.

15: Challenges in Understanding Visual Information

Individuals who struggle with understanding visual information may have difficulty interpreting images, graphics, or even simple instructions involving visual cues. They might find it challenging to follow along with presentations or comprehend complex visuals such as flowcharts or infographics. This can impact their ability to learn effectively and participate fully in their educational or professional endeavors.

Furthermore, difficulties in understanding visual information can also affect everyday tasks like navigating public spaces or recognizing important signs and symbols. It may result in increased frustration and potential safety concerns.

communication challenges - a warning sign of dementia

The Importance of Early Diagnosis

Early diagnosis is crucial when it comes to managing dementia effectively. Recognizing the symptoms of dementia at an early stage can significantly impact the quality of life for individuals affected by this condition. In this blog, we will delve into why early diagnosis is vital and explore the role of medical consultation in ensuring effective management.

Recognizing dementia symptoms early provides several advantages. Firstly, it allows individuals to understand and prepare for the future challenges associated with dementia. Secondly, it facilitates access to support services such as counseling, cognitive therapy programs, and community resources that can improve quality of life. Lastly, early recognition enables individuals and their loved ones to make informed decisions about care options, legal matters, financial planning, and advance directives.

Healthcare professionals possess the expertise needed to assess cognitive decline accurately, identify various forms of dementia, rule out other underlying conditions with similar symptoms, and provide appropriate treatment recommendations. A comprehensive evaluation ensures that individuals receive a proper diagnosis which serves as a foundation for developing personalized care plans tailored to their unique needs.

What to Do if You Notice These Symptoms

If you notice any of the warning signs associated with dementia in a loved one, it is important to take action promptly. Here are some steps you can take and why seeking healthcare advice is crucial:

1. Document the symptoms: Take note of any changes or behaviors that raise concerns. Keep a record of when these symptoms occur and how they affect your loved one’s daily life. This may be helpful when you seek expert advice or treatment from medical professional.

2. Discuss your observations: Initiate an open conversation with your loved one about their experiences and any difficulties they may be facing. Encourage them to share their concerns and feelings.

3. Seek medical advice: It is essential to consult a healthcare professional who specializes in cognitive health or dementia care. They can conduct a comprehensive analysis, evaluate the symptoms, and provide an accurate diagnosis. Sometimes people may be tempted to self-assess the existence of dementia, but we do not recommend such practices. There is no alternative to a professional approach and experience.

4. Follow professional guidance: Once a diagnosis has been made, follow the recommendations provided by the healthcare professional. This might involve lifestyle modifications, medications, therapy, or support services tailored to your loved one’s needs.

5. Educate yourself about dementia: Learn more about dementia and its various types to better understand what your loved one may be experiencing. This knowledge will equip you to offer appropriate support and create a conducive environment for their well-being.

6. Seek emotional support: Caring for someone with dementia can be emotionally challenging. Consider joining support groups or seeking counseling services for both you and your loved one as you navigate this journey together.

By taking these steps and seeking healthcare advice, you are ensuring that your loved one receives the necessary support earlier on in the process, which can positively impact their quality of life and overall management of dementia.



In conclusion, recognizing the warning signs of dementia early is crucial for better management and quality of life. By understanding these symptoms, you can take necessary actions to seek medical advice and ensure prompt intervention. Here is a recap of the 15 main warning signs of dementia:

1. Impaired memory
2. Significant change in mood
3. Struggling with abstract thinking
4. Difficulties in performing daily tasks
5. Disorientation and confusion
6. Misplacing things
7. Communication problems
8. Questionable decision-making
9. Major personality shifts
10. Withdrawal from social activities or work
11. Poor judgement
12. Repetitive compulsive behavior
13. Neglect of personal care and safety
14. Inability to concentrate 
15. Challenges in understanding visual information

Remember, taking proactive actions at early stages of dementia plays a vital role in managing dementia effectively. If you observe any of these warning signs in yourself or a loved one, don’t hesitate to seek healthcare advice immediately.

Early detection allows individuals and their families to plan for the future and make informed decisions regarding care, financial matters, and legal issues. It allows for the implementation of advance care directives and the creation of a support network. Further, recognizing the symptoms at an early stage provides an opportunity for individuals to make lifestyle changes that can potentially slow down the progression of dementia. These may include engaging in regular physical exercise, adopting a healthy diet, and participating in mentally stimulating activities.

Don’t delay! Early recognition can make a significant difference in the quality of life for those living with dementia and their families.

Additional Resources






Share the post:

Leave a Reply

Your email address will not be published. Required fields are marked *

Picture of Cherie Voise

Cherie Voise

Cherie Voise, inspired by personal experiences and driven by her role as an advocate, founded Voise Foundation to improve the lives of those with dementia. As the foundation's key content creator and blog author, she draws on her deep understanding of the disease, advocating for respect, dignity, and creative therapy avenues such as VST Music© and other programs. Cherie's heartfelt writings, fueled by empathy, resonate with readers, offering insight and stirring action. Become a part of this journey and together with Cherie, let's make a meaningful impact in the world of dementia care.