Type 2 diabetes is a term for several disorders with different causes and degrees of severity. It is the most common type of diabetes and is more common than type 1 diabetes.
Type 2 diabetes develops when the body becomes resistant to insulin or when the pancreas stops producing enough insulin. Often, people with type 2 diabetes can still make their own insulin in the pancreas, but the insulin that is produced is not used as effectively by the body.
Exactly why this happens is unknown, although excess weight and inactivity may be contributing factors.
Risk factors of type 2 diabetes include:
The symptoms of type 2 diabetes are similar to those of type 1 diabetes, but are often less marked. Some people may also experience slow healing cuts and bruises, recurring gum or bladder infections, or tingling in their hands or feet.
Other terms previously used for type 2 diabetes are adult-onset diabetes and Non-Insulin Dependent Diabetes Mellitus (NIDDM).
About 90% of people with diabetes have type 2.