Definition:

The disease which is caused by immune reactions against self antigens is known as autoimmune disease.

Some autoimmune diseases:

1. Non organ specific autoimmune diseases :

a) Systemic Lupus Erythematosus (SLE)
b) Rheumatoid arthritis (RA)
c) Systemic sclerosis
d) Dermatomyositis

2. Organ / Tissue specific autoimmune diseases:

a) Adrenal gland– Autoimmune Addison’s disease
b) Thyroid gland-

• Primary myxoedema
• Hashimoto’s thyroiditis

c) Pancreas-
i) Insulin Dependant Diabetes Mellitus (IDDM)
d) Haematological-
Haematological autoimmune diseases are-
i) Autoimmune haemolytic anaemia
ii) Idiopathic thrombocytopenic purpura.