Prediabetes What is prediabetes? If you've been diagnosed with prediabetes you have a higher chance of going on to develop type 2 diabetes. Check if you're at risk of prediabetes Find out if you're at risk of developing type 2 diabetes by doing a self-assessment check or getting an NHS Health Check. Protect your health and reduce your risk of prediabetes Things you can do to protect your health and help delay or reduce your risk of type 2 diabetes. Prediabetes support and advice Support and advice to help you self-care and manage your prediabetes.