What should you know about senile dementia?

Dementia is not a normal or inevitable part of ageing. It is a group of symptoms caused by changes affecting the brain. A person may repeat questions, lose track of familiar tasks, struggle to find words, misjudge situations, or need more help with daily activities. [Memory Problems](/symptoms/memory-problems/) are common, but memory is not the only area that can change. Sleep problems, medicines, depression, infection, thyroid disorders, hearing loss, and other conditions can look similar or worsen thinking. New [Urinary Incontinence](/symptoms/urinary-incontinence/) may also need separate assessment rather than being assumed to be dementia.

Record when changes began, examples of tasks affected, and any fluctuations. Bring a trusted family member to a [GP Consultation](/treatments/consultations-and-assessment/gp-consultation/) if the person agrees. The clinician may review medicines, physical health, mood, sleep, hearing, and daily function, then arrange examinations or tests. Keep routines predictable, use clear instructions, label important items, and check safety around driving, cooking, falls, and finances. Encourage regular meals, fluids, movement, social contact, and enjoyable activities suited to the person.

Book an assessment for gradual changes that interfere with work, self-care, or relationships. Seek urgent help for sudden confusion, new weakness, facial drooping, trouble speaking, a severe headache, fever, collapse, or a rapid change after a fall. Sudden confusion can signal an acute illness and should not be labelled dementia. A [Mental Health Assessment](/treatments/consultations-and-assessment/mental-health-assessment/) may help when low mood, anxiety, or distress is part of the picture.

Ask what other causes should be checked, which changes should be monitored, and how to support independence safely. Ask how the person can be involved in decisions and where carers can find practical support.