Nearly a third of all people with dementia feel "trapped in their home" and have given up on going outside, according to the Alzheimer's Society. The charity recommends making transport more accessible and businesses more welcoming.
Broadcaster and Alzheimer's Society ambassador Angela Rippon told ITV News that dementia sufferers are fearful of leaving their homes because some communities do not understand their condition.
When asked why some people are reluctant to leave their homes, Rippon said:
She added: "If you have a society where people don't understand the needs of people with dementia, don't understand how to recognise it, the support that someone with dementia needs, then obviously as an individual you are going to withdraw back inside yourself.
"You're not going to want to go out into the public and be humiliated in that way."
Dementia is a "time bomb", according to Health Secretary Jeremy Hunt, and the Government will be "backing" any community actively supporting local sufferers.
It is estimated that 800,000 people suffer from dementia in the UK. It has been estimated that the figure will soar to 1.7 million by 2051.
The dementia timebomb is one of the most pressing challenges this country faces in the years ahead.
We have made real progress in starting to tackle this challenge, with over £50 million going towards dementia friendly health and care environments, and the first ever G8 Dementia Research Summit to be held in December this year.
But this report makes clear that we need to go further and faster to change attitudes and build awareness in our communities.
This government is backing communities to give people with dementia all the help and support they need to live well with this illness.
More than 180,000 of all dementia sufferers feel "trapped in their own homes" by the disease, a charity has warned.
The Alzheimer' Society - which assists numerous dementia, Alzheimer and other cognitive impairment patients and their families - said only a third (35%) of sufferers feel brave enough to leave their home once a week.