A recent report from Wales, UK shows that the health of children with diabetes in Wales is improving.
Issues caused by the condition include long-term eye, kidney and vascular problems.
In 2015-16, 188,644 adults (aged 17 or over) were registered with their GP as living with it, an increase of 17.5% on the 160,533 registered in 2010-11.
A further 540,000 are at risk of developing the disease.
Chief executive of NHS Wales, Dr Andrew Goodall said more education was being provided to help all people living with diabetes.
He said: “With careful management, healthy lifestyle choices and good blood glucose control the risks of complications are markedly reduced.”