What is the Difference between Type 1 and Type 2 diabetes?

Dr. Suja P Sukumar
MBBS, MD, DM (PGIMER) (Endocrinology)

Type 1 Diabetes Mellitus (T1DM)

  • Is Insulin dependent diabetes with early age of onset in childhood or adolescence.
  • It is characterised by autoimmune destruction of insulin producing beta cells in our pancreas.
  • There will be marked or absolute insulin deficiency and hence blood glucose levels will be markedly high.
  • So a person with type 1 diabetes should receive supplemental insulin from the time of diagnosis for the rest of their life.

difference between type 1 and type 2 diabetes

Type 2 Diabetes Mellitus (T2DM)

  • Is Non Insulin dependent diabetes and is more common than type 1.
  • Unlike T1DM, people with T2DM are able to produce some insulin on their own, but their bodies are resistant to the action of insulin.
  • It usually develops after 35 years of age, but it can also occur in younger individuals with obesity, sedentary life style and family history of diabetes.
  • Along with life style modifications with diabetic diet and exercise, there are several anti-diabetic drugs and insulin that can be used to treat T2DM.
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