In general, people with diabetes either have a total lack of insulin (type 1 diabetes) or they have too little insulin or cannot use insulin effectively (type 2 diabetes).
|Type 1 diabetes||Type 2 diabetes|
|Symptoms usually start in childhood or young adulthood. People often seek medical help, because they are seriously ill from sudden symptoms of high blood sugar.||The person may not have symptoms before diagnosis. Usually the disease is discovered in adulthood, but an increasing number of children are being diagnosed with the disease.|
|Episodes of low blood sugar level (hypoglycemia) are common.||There are no episodes of low blood sugar level, unless the person is taking insulin or certain diabetes medicines.|
|It cannot be prevented.||It can be prevented or delayed with a healthy lifestyle, including maintaining a healthy weight, eating sensibly, and exercising regularly.|
Both types of diabetes greatly increase a person's risk for a range of serious complications. Although monitoring and managing the disease can prevent complications, diabetes remains the leading cause of blindness and kidney failure. It also continues to be a critical risk factor for heart disease, stroke, and foot or leg amputations.
|Primary Medical Reviewer||E. Gregory Thompson, MD - Internal Medicine|
|Specialist Medical Reviewer||Jennifer Hone, MD - Endocrinology, Diabetes and Metabolism|
|Last Revised||September 26, 2012|
Last Revised: September 26, 2012
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