Diabetes mellitus, popularly known as "diabetes" is a chronic disease. It is associated with very high levels of the glucose sugar present in our blood. There are two mechanisms for diabetes, patients may experience either of the two to suffer from this disease. The first is that there is not enough production of insulin produced by the pancreas as a result, blood glucose level are lowered or type 1. The second is that the cells is not sensitive enough to the action of insulin or type 2.

Diagnosis of Diabetes is commonly done using the blood and subjecting it to several different laboratory tests like blood glucose testing. Glycosylated hemoglobin levels (glycohemoglobin or hemoglobin A1C) are also subjected to testing, and the glucose tolerance test.

The mode of treating Diabetes varies, usually depending on what type of diabetes they are dealing with. For type 1 diabetes, the primary treatment is by replacing insulin combined with careful blood sugar level monitoring using monitors for blood testing even at very early stages. Adjusting the lifestyles of the patient is also a step being done and emphasized by physicians. Insulin can be supplied in the body through injections, pump, or through inhaling. Type 2 diabetes, in the other hand, is usually treated by endulging in more physical activities, planning diet and reducing intake of foods with high carbohydrates and therefore losing weight. This method, however doesn't correct the cells' tendency to resist insulin, and so these measures should be continued. Next step, is taking oral anti-diabetic pills.

The symptoms of type 1 and type 2 diabetes include increase in volume of urine output which are usually sweet and less appetite accompanied with fatigue and stress.

There is no known direct effect of this disease although it was thought to be a genetic condition which may be passed on to generations.