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NOTE:
unless noted otherwise, all medical/health advice has been given by non-medically qualified personnel. All advice given on this site is designed to support and not replace any advice given by your personal physician. If you have questions or concerns about individual health matters or the management of your diabetes, please consult your diabetes care team.

This table gives a detailed list of all the various types/causes of diabetes mellitus.

For more information on Type 1, Type 2 and Gestational diabetes, see Types of Diabetes.

For more information on some of the other types of diabetes, see Less Common Types of Diabetes.

Type 1 Diabetes Beta cells destroyed by autoimmune response a Autoimmune
No apparent cause of beta cell destruction b Idiopathic
Type 2 Diabetes Problems with insulin action and/or insulin secretion Spectrum of different forms
Gestational Diabetes Any degree of glucose intolerance appearing during pregnancy Other types may be "unmasked" during pregnancy
Other Specific Types Genetic defects of beta cell function (insulin secretion) MODY
MIDD (Maternally Inherited Diabetes and Deafness)
Others
Genetic defects of insulin action (insulin resistance) Type A insulin resistance
Polycystic Ovarian Syndrome (PCOS)
Leprechaunism
Lipoatrophic diabetes
Others
Disease of the exocrine (digestive) functions of the pancreas Pancreatitis
Pancreatectomy (surgical removal of some or all)
Cystic Fibrosis
Haemochromatosis
Fibrocalculous pancreatopathy ("stones" in the pancreas)
Others
Endocrinopathies

(Hormone conditions)
Acromegaly
Cushing's Syndrome
Glucagonoma
Pheochromocytoma
Hyperthyroidism
Somatostatinoma
Alsosteronoma
Others
Drug or chemical induced Vacor
Pentamidine
Nicotinic acid
Glucocorticoids
Thyroid hormone
Diazoxide
Dilantin
Interferon
Others
Infections Congenital rubella (German measles)
Cytomegalovirus
Others
Uncommon forms of immune-mediated diabetes Stiff-man syndrome
Anti-insulin receptor antibodies
Others
Other genetic syndromes associated with diabetes Down's syndrome
Klinefelter's syndrome
Turner's syndrome
Wolfram"s syndrome
Prada-Willi syndrome
Friedrich's ataxia
Huntingdon's disease
Myotonic dystrophy
Porphyria
Others