OMG I had no idea -Graves’ disease is associated with pernicious anemia (chronic illness caused by impaired absorption of vitamin B12 because of a lack of intrinsic factor in gastric secretions), vitiligo, diabetes mellitus type 1, autoimmune adrenal insufficiency, systemic sclerosis, myasthenia gravis, Sjögren syndrome, rheumatoid arthritis, and even systemic lupus erythematosus.
http://www.thesundaily.my/news/286417Graves' disease a major concern | theSundaily www.thesundaily.myGRAVES' disease is an autoimmune disease characterised by hyperthyroidism, which is caused by production of antibodies that have the unintended effect of attacking the thyroid gland.