Short-term dementia: what to know

Short-term memory involves holding onto newly learned information, such as a conversation, instruction, or recent event. Dementia is a broader pattern in which cognitive changes interfere with daily life; memory may be affected alongside language, planning, orientation, or judgement. A person can have memory problems without having dementia.

Poor sleep, depression, anxiety, medicines, thyroid problems, vitamin deficiency, infection, pain, and hearing or vision difficulty can affect concentration and recall. Sudden confusion, especially with illness or a change in continence, is not something to label as dementia without examination.

Arrange a GP consultation and take a clear timeline of changes, examples of missed information, medicines, sleep, mood, alcohol use, and changes in daily tasks. Ask a trusted person to join if the affected person agrees. Use calendars, written reminders, labelled places, and calm repetition while awaiting assessment.

Seek urgent help for sudden confusion, new weakness, trouble speaking, severe headache, seizure, fainting, fever, or a head injury. Prompt review is also needed when memory change affects medication safety, cooking, driving, getting lost, or personal care. A mental health assessment may help when low mood, worry, or loss of interest is prominent.

Ask what reversible causes should be checked, which cognitive assessment is appropriate, and whether a medication review or further referral is needed. Discuss consent, support at home, continence changes, and planning for safety without removing independence unnecessarily.