My elderly mum is increasingly reluctant to take in fluids, and this has become critical. This began with her taking increasingly small sips of drinks, and often not wanting to accept a drink at all. Is this common? Is it caused by the dementia, or by dehydration itself, or something else? Does it have a psychological origin? For example, I know my mum hates wetting her incontinence pad, so could she have worked out that not drinking is a way to avoid passing water (or is that too subtle?); or maybe she is sick of me continually pestering her to take a drink, all day; or something maybe something else. Or does it have a physical cause? A nurse who was visiting persuaded my mum to have a good sip of squash from a beaker, but then the whole lot was spat out. If the body is dehydrated why on earth should it reject fluids? Does anyone have any comments or suggestions?