Reduce the Risk of Diabetes Complications With type 2 diabetes (also called type 2 diabetes mellitus), if you don’t work hard to keep your blood glucose level under control, there are short- and long-term complications to contend with. However, by watching the amount and types of food you eat (your meal plan), exercising, and taking any necessary medications, you may be able to prevent these complications. And even if you have some of the long-term, more serious complications discussed below when you’re first diagnosed, getting tight control of your blood glucose will help prevent the complications from becoming worse.(It is possible with type 2 diabetes to already have some of these complications when you’re first diagnosed. That’s because type 2 develops gradually, and you may not realize that you have high blood glucose for quite some time. Over time, high blood glucose can cause serious damage. You can learn more about that in this article on the symptoms of type 2 diabetes.) Short-term complications of type 2 diabetes are hypoglycemia (very low blood glucose) and hyperosmolar hyperglycemic nonketotic syndrome (HHNS), which is very high blood glucose.