New figures from the Alzheimer's Society show that, in some parts of the East Midlands, just four in ten people with dementia are being diagnosed with the condition.
The charity says it's disappointing that the number of cases being spotted varies so greatly between different parts of the region.
Our correspondent Peter Bearne has been talking to one woman who says health professionals repeatedly refused to accept her elderly mother had the disease.
More top news
The 37-year-old was helping authorities in the country track the criminals when his aircraft was fired upon in January.
Labour strongholds tended to remain so - apart from a major loss for the party in Dudley.
Labour suffered losses in English council elections, but the initial results were not as bad as many had expected.