Type 1 Diabetes
Type 1 Diabetes Mellitus is a condition associated with total lack of insulin in the body. If not treated properly, it can lead to Diabetic Keto Acidosis (DKA), which can even be fatal.
It is usually due to an autoimmune process, in which body's own immunity turns against the organs of the body, in this case, the pancreatic beta cells, that secrete the glucose regulating hormone insulin.
These patients require life-long insulin treatment, either in the form of insulin injections or insulin pumps, in order to survive.
Type 2 Diabetes
Type 2 Diabetes Mellitus is characterized by insulin resistance (i.e. insulin is not able to act properly). It can be managed with oral tablets initially. However, in the long-run, patients with Type 2 Diabetes may also need insulin injections.
If not adequately controlled, it can affect different organs of the body. The major organs affected include the eyes, kidneys, heart, liver and feet. Once these organs are affected, even a proper control of blood sugar then, may not halt the progression of these complications.
So, it is important to treat it adequately from the time of onset, so as to delay the onset of complications.