Symptoms in the later stages of dementiaAs dementia progresses, memory loss and difficulties with communication often become severe. In the later stages, the person is likely to neglect their own health, and require constant care and attention.The most common symptoms of advanced dementia include:memory problems – people may not recognise close family and friends, or remember where they live or where they arecommunication problems – some people may eventually lose the ability to speak altogether. Using non-verbal means of communication, such as facial expressions, touch and gestures, can helpmobility problems – many people become less able to move about unaided. Some may eventually become unable to walk and require a wheelchair or be confined to bedbehavioural problems – a significant number of people will develop what are known as "behavioural and psychological symptoms of dementia". These may include increased agitation, depressive symptoms, anxiety, wandering, aggression, or sometimes hallucinations is common in the later stages of dementia, and some people will also experience appetite and weight loss problems are both common in advanced dementia. Many people have , and this can lead to choking, chest infections and other problems.Find out more, As dementia progresses, memory loss and difficulties with communication often become severe. In the later stages, the person is likely to neglect their own health, and require constant care and attention., Common early-stage symptoms include problems with memory, speed of thought, language or perception. What happens in the early stage of dementia? Dementia affects everyone differently and the first signs of dementia are often relatively mild and not always easy to notice..