Signs & Symptoms - DementiaHub.SG

Signs & Symptoms


Source: Agency for Integrated Care

Every person living with dementia is unique, and thus does not present the same symptoms. A saying goes: “When you see a person living with dementia, you have seen just one.” The needs and manifestations vary from person to person although there are some common symptoms.

The signs and symptoms of dementia include but are not limited to the following:

• Memory loss (forgetfulness) that occurs gradually, and worsens progressively with time. Immediate and short-term memory loss occurs first.
• Difficulty in communication.
• Problems recognising familiar faces or items.
• Worsening of problem-solving abilities and increasing disorganisation.
• Problems with daily activities such as dressing and using utensils during mealtimes.

In addition, the following behavioural and psychological symptoms may also occur:

• Depression
• Agitation
• Hallucinations
• Anxiety
• Paranoia
• Sleep problems

Ten Warning Signs That May Indicate Dementia


Watch Christel’s sharing on how having been exposed to the condition with her grandfather taught her family to spot the signs in the case of her grandmother, and take action.

Source: ForgetUsNot Initiative by LIEN Foundation, Khoo Teck Puat Hospital and Dementia Singapore

Signs and Symptoms in Young-Onset Dementia

Young-onset dementia (dementia in persons below age 65) may also appear different from dementia in older persons.

Causes of dementia and symptoms:

• Persons with young-onset dementia are more likely to experience problems with their motor skills, including movement and coordination.

• Dementia affecting the frontotemporal brain regions are more common in younger persons.

Life stages and signs of dementia:1

• As younger persons are in different life stages, which come with different responsibilities, stages in relationships, and social activities, the signs of dementia may be observed in these situations which older persons might not be in.

• Younger persons are more likely to be in employment, and possibly at a higher point of their career with more responsibilities, upon the onset of dementia than older persons. Hence, the symptoms of their dementia may become apparent at work.

• A younger person is more likely to be a parent of a younger child than an older adult. Thus, they will face more challenges as they may gradually be unable to do things needed to care for their young child.

Watch this Channel NewsAsia’s video that highlights the alarming, increasing rate of younger people being diagnosed with the disease

Source: Channel NewsAsia

George’s Story

When George found out he had dementia, he was only 46 years old. As an ex-chemistry teacher, a published author of chemistry textbooks, and an active runner who always kept in good health, it was a shock to himself, his wife and his three children.

Watch how the family copes with George’s diagnosis

Source: CNA Insider

Read the article featuring the story of George and his family.

Downloadable Resources

The following resources contain bite-sized information on Signs & Symptoms that you may download and/ or print:

Click on the images below to download in English or select another language.

Living with Dementia: A Resource Kit for Caregivers (Book 1: Knowing Dementia)

Forget Us Not Dementia Handbook


  1. Alzheimer Society of Calgary. (n.d.). Young-Onset Dementia. Retrieved 5 March, 2020, from
Skip to content